WO2021031752A1 - Ceramic article, preparation method therefor, and electronic device - Google Patents

Ceramic article, preparation method therefor, and electronic device Download PDF

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WO2021031752A1
WO2021031752A1 PCT/CN2020/102284 CN2020102284W WO2021031752A1 WO 2021031752 A1 WO2021031752 A1 WO 2021031752A1 CN 2020102284 W CN2020102284 W CN 2020102284W WO 2021031752 A1 WO2021031752 A1 WO 2021031752A1
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parts
mixture
ceramic products
mass
ceramic
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PCT/CN2020/102284
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French (fr)
Chinese (zh)
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晏刚
杨光明
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Oppo广东移动通信有限公司
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    • C04B35/48Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
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Definitions

  • the invention relates to the technical field of materials, in particular to a ceramic product, a preparation method thereof, and electronic equipment.
  • Zirconia (chemical formula is ZrO 2 ) is the main oxide of zirconium. It is chemically inactive. It has high melting point, high resistivity, high refractive index and low thermal expansion coefficient. It can be used as high temperature resistant material, ceramic insulating material and ceramic shading Agent. However, the permeability of ceramic products made of general zirconia materials is low, about 20%, which severely limits the use of ceramic products.
  • a ceramic product, in parts by mass, the raw materials for preparing the ceramic product include:
  • An electronic device including:
  • a housing assembly including the above-mentioned ceramic products, the housing assembly forming an installation space;
  • a display assembly connected to the housing assembly
  • the circuit board is arranged in the installation space and electrically connected with the display assembly.
  • a method for preparing ceramic products includes the following steps:
  • the raw materials are mixed to obtain a mixture, wherein the raw materials include 85 parts to 95 parts of zirconia, 2 parts to 5 parts of yttrium oxide, 1 part to 2.5 parts of hafnium oxide, 0.2 parts to 1 part by mass. Parts of silica, 0.1 parts to 0.5 parts of alumina, 0.1 parts to 0.5 parts of zinc oxide, 0.001 parts to 0.1 parts of ferric oxide, 0.01 parts to 0.1 parts of nickel oxide, and 0.01 parts to 0.5 parts of Titanium oxide; and
  • the mixture is shaped to obtain ceramic products.
  • a ceramic product is prepared by the preparation method of the above ceramic product.
  • An electronic device including:
  • the housing assembly includes a substrate, which is prepared by the above-mentioned method for preparing ceramic products;
  • a display assembly connected to the housing assembly, and an installation space is defined between the display assembly and the housing assembly;
  • the circuit board is arranged in the installation space and is electrically connected to the display assembly.
  • FIG. 1 is a schematic diagram of the structure of an electronic product according to an embodiment
  • FIG. 2 is a schematic cross-sectional view of a housing assembly of an electronic product according to another embodiment.
  • the ceramic product of one embodiment has a relatively high transmittance, and can be used to prepare a housing of an electronic product with a better appearance.
  • the raw materials for preparing the ceramic products include 85 to 95 parts of zirconia, 2 to 5 parts of yttrium oxide, 1 to 2.5 parts of hafnium oxide, 0.2 to 1 part of silicon dioxide, 0.1 Parts to 0.5 parts of alumina, 0.1 parts to 0.5 parts of zinc oxide, 0.001 parts to 0.1 parts of ferric oxide, 0.01 parts to 0.1 parts of nickel oxide, and 0.01 parts to 0.5 parts of titanium oxide.
  • Some researches doped alumina into zirconia powder by co-precipitation method to improve its mechanical properties. Since alumina is milky white, the addition of alumina results in a low transmittance of ceramic products. Generally, the transmittance of ceramic products with a thickness of 0.45 mm is about 20%, which severely limits the use of ceramic products. The above-mentioned ceramic products have a reasonable ratio of raw materials, so that the ceramic products have a higher transmittance, and the ceramic products have better mechanical properties.
  • Zirconia is the base material of ceramic products. It has the properties of high melting point, high electrical resistivity, high refractive index and low thermal expansion coefficient, which enable ceramic products to withstand high temperatures and have good insulation. Further, the mass parts of zirconia in the raw materials for preparing the ceramic products are 87 parts to 93 parts. In some of the embodiments, the mass parts of zirconia in the raw materials for preparing the ceramic products are 85 parts, 87 parts, 90 parts, 93 parts, or 95 parts.
  • Yttrium oxide namely Y 2 O 3
  • Y 2 O 3 can reduce the radius of ceramic powder particles, which can inhibit the growth of ceramic powder particles, but can aggravate the agglomeration of ceramic powder particles, and the agglomeration strength is better.
  • the mass parts of yttrium oxide in the raw materials for preparing the ceramic products are 2.5 to 4.5 parts. In some of the embodiments, the mass parts of yttrium oxide in the raw materials for preparing ceramic products are 2, 2.5, 3, 3.5, 4, 4.5, or 5 parts.
  • the mass ratio of zirconium oxide to yttrium oxide is 20:1-22:1. This arrangement can not only improve the transmittance of ceramic products, but also make the ceramic products have stronger toughness and better processing characteristics.
  • Hafnium and zirconium are elements of the same family and have similar chemical properties. Adding 1 part to 2.5 parts by mass of hafnium oxide (ie HfO 2 ) can ensure the mechanical properties of ceramic products.
  • Silica ie SiO 2
  • the mass parts of silica in the raw materials for preparing the ceramic products are 0.4 parts to 0.8 parts.
  • the mass parts of silica in the raw materials for preparing the ceramic products are 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, 0.6 parts, 0.7 parts, 0.8 parts, 0.9 parts, or 1 part.
  • the mass percentage of alumina in ceramic products is 5%-9%, which can make the ceramic products have higher hardness.
  • alumina is milky white, resulting in low permeability of ceramic products.
  • the ceramic products of the above embodiment can not only improve the brightness of the ceramic products by adding alumina and optimize the content of alumina, so that the ceramic products have a higher transmittance, but also can ensure the mechanical properties of the ceramic products.
  • the mass parts of alumina in the raw materials for preparing the ceramic products are 0.1 to 0.4 parts. In some of the embodiments, the mass parts of alumina in the raw materials for preparing the ceramic products are 0.1 part, 0.15 part, 0.2 part, 0.25 part, 0.3 part, 0.35 part, 0.4 part, 0.45 part, or 0.5 part.
  • the mass ratio of silica to alumina is 2:1 to 2.5:1. This arrangement can not only improve the transmittance of ceramic products, but also improve the mechanical properties of ceramic products.
  • Zinc oxide is a white pigment that can adjust the color of ceramic products, so that ceramic products have higher transmittance, and can also increase the mechanical properties of ceramic products.
  • the mass parts of zinc oxide in the raw materials for preparing the ceramic products are 0.1 to 0.4 parts. In some of the embodiments, the mass parts of zinc oxide in the raw materials for preparing the ceramic products are 0.1 parts, 0.15 parts, 0.2 parts, 0.25 parts, 0.3 parts, 0.35 parts, 0.4 parts, 0.45 parts, or 0.5 parts.
  • Ferric oxide can adjust the color of ceramic products and improve the mechanical properties of ceramic products.
  • the mass parts of iron trioxide is 0.01 parts to 0.05 parts.
  • the mass parts of iron trioxide are 0.001 parts, 0.005 parts, 0.01 parts, 0.02 parts, 0.03 parts, 0.04 parts, 0.05 parts, 0.06 parts, 0.07 parts, 0.08 parts, 0.09 parts or 0.1 parts.
  • Nickel oxide is green, while ferric oxide is brownish red. The colors of the two are abolished. Nickel oxide and ferric oxide can weaken each other's hue to appear black or gray to increase the transmittance of ceramic products. And the addition of nickel oxide can also improve the mechanical properties of ceramic products. Further, in the raw materials for preparing ceramic products, the mass parts of nickel oxide are 0.03 parts to 0.07 parts. In some embodiments, in the raw materials for preparing ceramic products, the mass parts of nickel oxide are 0.01 parts, 0.02 parts, 0.03 parts, 0.04 parts, 0.05 parts, 0.06 parts, 0.07 parts, 0.08 parts, 0.09 parts, or 0.1 parts. .
  • Titanium oxide is a white pigment that can improve the brightness of ceramic products and increase the transmittance of ceramic products. Further, in the raw materials for preparing ceramic products, the mass parts of titanium oxide is 0.2 to 0.4 parts. In some of the embodiments, in the raw materials for preparing ceramic products, the mass parts of titanium oxide are 0.01 parts, 0.05 parts, 0.1 parts, 0.15 parts, 0.2 parts, 0.25 parts, 0.3 parts, 0.35 parts, 0.4 parts, 0.45 parts Or 0.5 servings.
  • the raw materials for preparing ceramic products consist of the following components in parts by mass: 85 to 95 parts of zirconia, 2 to 5 parts of yttrium oxide, 1 to 2.5 parts of hafnium oxide, 0.2 to 1 part of silica, 0.1 to 0.5 part of alumina, 0.1 to 0.5 part of zinc oxide, 0.001 to 0.1 part of ferric oxide, 0.01 to 0.1 part of nickel oxide and 0.01 to 0.5 part of Titanium oxide.
  • This arrangement makes the ceramic products have higher transmittance and better mechanical properties.
  • the particle size (D 50 , median diameter or median particle size) of the ceramic powder obtained after mixing the raw materials for preparing the ceramic product is 500 nm to 1200 nm. This arrangement makes the ceramic products have higher transmittance and better mechanical properties.
  • the raw materials of the above ceramic products include 85 to 95 parts of zirconia, 2 to 5 parts of yttrium oxide, 1 to 2.5 parts of hafnium oxide, 0.2 to 1 part of silicon dioxide, 0.1 to 0.5 parts of aluminum oxide, 0.1 parts to 0.5 parts of zinc oxide, 0.001 parts to 0.1 parts of ferric oxide, 0.01 to 0.5 parts of titanium oxide and 0.01 to 0.1 parts of nickel oxide, the ratio is reasonable, so that the ceramic products have Higher transmittance is higher. It has been verified by experiments that the transmittance of the above ceramic products is greater than 40% and has a higher transmittance.
  • the ceramic products can have both higher transmittance and better mechanical properties for use in the housing of electronic products.
  • the method for preparing ceramic products according to one embodiment can prepare ceramic products with higher transmittance and better mechanical properties.
  • the preparation method of the ceramic product includes the following steps S110 to S120:
  • the raw materials include 85 parts to 95 parts of zirconia, 2 parts to 5 parts of yttrium oxide, 1 part to 2.5 parts of hafnium oxide, 0.2 parts to 1 part by mass. Parts of silica, 0.1-0.5 parts of alumina, 0.1-0.5 parts of zinc oxide, 0.001-0.1 parts of ferric oxide, 0.01-0.1 parts of nickel oxide, and 0.01-0.5 parts of titanium oxide.
  • the mass parts of zirconium oxide in the raw material is 87 parts to 93 parts. In some of the embodiments, the mass parts of zirconium oxide in the raw materials are 85 parts, 87 parts, 90 parts, 93 parts, or 95 parts.
  • the mass parts of yttrium oxide in the raw material is 2.5 parts to 4.5 parts. In some of the embodiments, the mass parts of yttrium oxide in the raw materials are 2, 2.5, 3, 3.5, 4, 4.5, or 5 parts.
  • the mass ratio of zirconium oxide to yttrium oxide is 20:1-22:1.
  • Hafnium and zirconium are elements of the same family and have similar chemical properties. Adding 1 part to 2.5 parts by mass of hafnium oxide (ie HfO 2 ) can ensure the mechanical properties of ceramic products.
  • the mass parts of silica in the raw material is 0.4 parts to 0.8 parts. In some of the embodiments, the mass parts of silica in the raw materials are 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part or 1 part.
  • the mass part of alumina in the raw material is 0.1 part to 0.4 part. In some embodiments, the mass parts of alumina in the raw materials are 0.1 part, 0.15 part, 0.2 part, 0.25 part, 0.3 part, 0.35 part, 0.4 part, 0.45 part, or 0.5 part.
  • the mass ratio of silica to alumina is 2:1 to 2.5:1.
  • the mass part of zinc oxide in the raw material is 0.1 part to 0.4 part. In some embodiments, the mass parts of zinc oxide in the raw materials are 0.1 part, 0.15 part, 0.2 part, 0.25 part, 0.3 part, 0.35 part, 0.4 part, 0.45 part or 0.5 part.
  • the mass parts of the iron trioxide in the raw materials is 0.01 parts to 0.05 parts. In some embodiments, the mass parts of iron trioxide in the raw materials are 0.001 parts, 0.01 parts, 0.02 parts, 0.03 parts, 0.04 parts, 0.05 parts, 0.06 parts, 0.07 parts, 0.08 parts, 0.09 parts, or 0.1 parts by mass. Copies.
  • the mass parts of nickel oxide in the raw materials are 0.03 parts to 0.07 parts. In some embodiments, the mass parts of nickel oxide in the raw materials are 0.01 part, 0.02 part, 0.03 part, 0.04 part, 0.05 part, 0.06 part, 0.07 part, 0.08 part, 0.09 part, or 0.1 part.
  • the mass part of titanium oxide in the raw material is 0.2 to 0.4 parts. In some embodiments, the mass parts of titanium oxide in the raw materials are 0.01 parts, 0.05 parts, 0.1 parts, 0.15 parts, 0.2 parts, 0.25 parts, 0.3 parts, 0.35 parts, 0.4 parts, 0.45 parts, or 0.5 parts.
  • the raw material is composed of the following components in parts by mass: 85 to 95 parts of zirconia, 2 to 5 parts of yttrium oxide, 1 to 2.5 parts of hafnium oxide, 0.2 to 1 part Parts of silica, 0.1-0.5 parts of alumina, 0.1-0.5 parts of zinc oxide, 0.001-0.1 parts of ferric oxide, 0.01-0.1 parts of nickel oxide, and 0.01-0.5 parts of titanium oxide.
  • the particle size (D 50 , median diameter or median particle size) of the ceramic powder obtained after mixing the raw materials is 500 nm to 1200 nm.
  • the step of mixing the raw materials to obtain the mixture includes: mixing the raw materials, the defoamer, the plasticizer, the binder and the organic solvent to obtain the mixture.
  • the antifoaming agent includes dimethylsiloxane. It should be noted that the defoaming agent is not limited to the defoaming agent indicated above, and can also be other defoaming agents in the ceramic field. It can be set as required.
  • the mass parts of the defoamer in the mixture is 3 to 4 parts. In some of the embodiments, the mass parts of the defoamer in the mixture are 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts or 5 parts.
  • Plasticizers can improve the performance of the mixture and make ceramic products have higher toughness and plasticity. Further, plasticizers include dibutyl phthalate (ie DBP, Dibutyl phthalate), butyl benzyl phthalate (ie BBP, Benzyl butyl phthalate), and dioctyl phthalate (ie DOP, At least one of Dioctyl Phthalate). It should be noted that the plasticizer is not limited to the plasticizers indicated above, and can also be plasticizers in other ceramic fields. It can be set as required.
  • the mass parts of the plasticizer in the mixture is 6-9 parts. Further, in the mixture, the mass parts of the plasticizer is 7 to 8 parts. In some embodiments, the mass parts of the plasticizer in the mixture are 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts, 9.5 parts or 10 parts by mass. Copies.
  • Organic solvents can adjust the viscosity of the mixture.
  • the organic solvent includes at least one of ethanol, toluene and ethylene glycol. This arrangement makes the ceramic products have a higher density, so as to improve the hardness of the ceramic products.
  • the organic solvent includes toluene and ethylene glycol. The mass ratio of toluene and ethylene glycol is 7:3-9:3. This setting can not only reduce the toxicity caused by toluene, but also take into account the uniform dispersion of the ceramic powder by the organic solvent. It should be noted that, by controlling the mass fraction of the organic solvent, the mixture can be molded into ceramic products in different ways.
  • the mass parts of the organic solvent in the mixture is 5-10 parts.
  • the mixture with such a setting can be made into ceramic products by dry pressing or injection molding.
  • the mass parts of the organic solvent in the mixture is 10 parts to 20 parts.
  • the mixed material with this arrangement can be made into ceramic products by casting. Further, the viscosity of the mixture is 400 cps to 2000 cps. This arrangement is more conducive to the molding of the mixture into a green body.
  • the binder includes polymethyl methacrylate (PMMA, poly(methyl methacrylate)), polyvinyl butyral (PVB, polyvinyl butyral), paraffin wax and polypropylene (PP, at least one of polypropylene).
  • PMMA polymethyl methacrylate
  • PVB polyvinyl butyral
  • paraffin wax polypropylene
  • PP polypropylene
  • the adhesive is not limited to the above-mentioned adhesives, and may also be adhesives in other ceramic materials. It can be set as required. It should be noted that the type and mass fraction of the binder can be controlled so that the mixture can be made into ceramic products by different molding methods.
  • the binder includes at least one of polymethyl methacrylate and polyvinyl butyral.
  • the mixture with such a setting can be made into ceramic products by dry pressing or casting.
  • the mass parts of the binder are 7-10 parts. In some of the embodiments, the mass parts of the binder in the mixture is 7, 8, 9 or 10 parts.
  • the binder includes at least one of paraffin wax and polypropylene.
  • the mixture with such a setting can be made into ceramic products by injection molding.
  • the binder includes paraffin wax and polypropylene.
  • the mass ratio of paraffin wax and polypropylene is 6:4-9:1.
  • the mixed material with this arrangement can be made into ceramic products with higher transmittance and better mechanical properties through injection molding.
  • the mass parts of the binder are 10 parts to 15 parts.
  • the mass parts of the binder are 11 parts to 14 parts.
  • the mass parts of the binder in the mixture are 10 parts, 11 parts, 12 parts, 13 parts, 14 parts or 15 parts.
  • the mixture includes 60 parts to 78 parts of raw materials, 2 parts to 5 parts of defoamer, 5 parts to 10 parts of plasticizer, and 10 parts to 15 parts of viscosity. Binder and 5-10 parts of organic solvent. Binders include paraffin and polypropylene. The mass ratio of paraffin wax and polypropylene is 6:4-9:1. This arrangement enables the mixture to be made into ceramic products by injection molding, and obtains ceramic products with higher transmittance and better mechanical properties.
  • the mixture includes 65 to 81 parts of raw material, 2 to 5 parts of defoamer, 5 to 10 parts of plasticizer, 7 to 10 parts of viscous Binder and 5-10 parts of organic solvent, and the binder includes at least one of polymethyl methacrylate and polyvinyl butyral.
  • the molding method of the mixture is dry pressing molding, injection molding or casting molding. It should be noted that the molding method of the mixture is not limited to the above-indicated method, and may also be other molding methods in the ceramic field, which can be set as required.
  • the mass parts of the raw materials are 65 parts to 81 parts
  • the mass parts of the defoaming agent is 2 parts to 5 parts
  • the mass parts of the plasticizer is 5 parts to 10 parts.
  • the mass parts of the binder is 7-10 parts
  • the mass parts of the organic solvent is 5-10 parts
  • the binder includes at least one of polymethyl methacrylate and polyvinyl butyral .
  • the forming method is dry pressing.
  • the dry pressing pressure is 180 MPa to 240 MPa
  • the dry pressing temperature is 40° C. to 80° C.
  • the pressure holding time is 5 s to 500 s.
  • the mass parts of the raw materials are 60 parts to 78 parts
  • the mass parts of the defoamer is 2 parts to 5 parts
  • the mass parts of the plasticizer is 5 parts to 10 parts.
  • the mass parts of the binder is 10-15 parts
  • the mass parts of the organic solvent is 5-10 parts
  • the binder includes paraffin wax and polypropylene
  • the mass ratio of paraffin wax and polypropylene is 6:4-9 :1.
  • the step of forming the mixture includes: granulating and injection molding the mixture in sequence.
  • the method of granulation is extrusion granulation. It should be noted that the method of granulation is not limited to extrusion granulation, and other granulation methods may also be used, which can be set as required. Furthermore, the length of the granules formed by the granulation is 3 cm to 5 cm. This arrangement is convenient for feeding materials into the injection machine during injection molding, ensuring work efficiency, and can avoid blocking the feeding port due to large particles. It should be noted that the diameter of the particles formed by granulation is not limited, and can be set as required, for example, the diameter of the particles formed by granulation is 1 mm-10 mm.
  • the injection temperature is 150° C. to 180° C.
  • the injection pressure is 75 MPa to 90 MPa.
  • the injection temperature is set to 150°C to 180°C, so that the granules formed by granulation can flow easily during the molding process, and the green body after injection molding is not easily deformed.
  • the injection pressure is set to 75 MPa to 90 MPa, which makes it easy to shape and avoids cracking of the formed body.
  • the mass parts of the raw materials are 55 to 76 parts
  • the mass parts of the defoamer is 2 parts to 5 parts
  • the mass parts of the plasticizer is 5 parts to 10 parts.
  • the mass parts of the binder is 7-10 parts
  • the mass parts of the organic solvent is 10-20 parts
  • the binder includes at least one of polymethyl methacrylate and polyvinyl butyral .
  • the molding method is cast molding.
  • the thickness of the blank obtained by the casting of the mixture is 0.7 mm to 1.1 mm.
  • This arrangement can ensure the mechanical properties of ceramic products and increase the transmittance of ceramic products for use in the housing of electronic products.
  • casting is performed in a casting equipment.
  • the blade height is 1.2mm ⁇ 2.3mm
  • the casting belt speed is 0.4m/min ⁇ 0.8m/min
  • the temperature of the first casting drying zone is 70°C ⁇ 80°C
  • the temperature of the second casting drying zone is 80°C ⁇ 100°C.
  • the method further includes the step of ball milling the mixture.
  • Ball milling makes the components of the mixture evenly mixed.
  • the material of the ball used in the ball mill is zirconia.
  • the diameter of the ball is 0.5 mm.
  • the volume of the ball milling chamber of the ball mill is 20L.
  • the ball occupies 1/3 to 1/2 of the volume of the ball mill chamber of the ball mill.
  • the flow rate of the ball mill is 5L/min ⁇ 10L/min.
  • the rotating speed of the ball mill is 2000 revolutions/min to 3000 revolutions/min.
  • the method further includes the following step: debinding and sintering the green body obtained by forming the mixture.
  • the debinding temperature is 300°C to 600°C.
  • the debinding time is 36h ⁇ 72h.
  • the sintering temperature is 1300°C ⁇ 1500°C.
  • the sintering time is 36h ⁇ 72h.
  • This arrangement can improve the transmittance and mechanical properties of ceramic products.
  • the sintering temperature is 1430°C to 1480°C. This arrangement can increase the transmittance of ceramic products and ensure the processing yield and overall strength of ceramic products. It should be noted that multiple pieces of green bodies obtained after being molded from the mixture can be sequentially stacked together for debinding and sintering.
  • This setting can adjust the thickness of the ceramic product as required.
  • the sintering shrinkage is about 25%. It should be noted that the step of debinding and sintering the green body obtained by molding the mixture can be omitted. At this time, the green body obtained by forming the mixture can be used to prepare ceramic products with higher transmittance and better mechanical properties. .
  • the method further includes the following step: performing wax removal treatment on the green body obtained by molding the mixture.
  • the step of dewaxing the body obtained by molding the mixture includes: immersing the body obtained by molding the mixture in kerosene for a soaking time of 24h to 36h.
  • Some researches doped alumina into zirconia powder by co-precipitation method to improve its mechanical properties.
  • alumina is milky white
  • the addition of alumina results in low permeability of ceramic products.
  • the permeability of ceramic products with a thickness of 0.45 mm is about 20%, which severely limits the use of ceramic products.
  • Some studies have changed the sintering conditions of zirconia to make the zirconia undergo a phase change to obtain cubic zirconia to increase its transmittance.
  • the commonly used cubic zirconia preparation method in the world: the "cranial crucible" method invented by the Soviet Union is still the main synthesis method.
  • a copper tube is wound into a cup shape, and cooling water is poured into the copper tube.
  • the entire device is surrounded by a radio frequency induction coil.
  • the induction coil When the induction coil is energized, the zirconium metal is heated to a high temperature due to the induction of electric current, and the heat is transferred to the zirconium oxide inside to make it.
  • the cooling water keeps the zirconia in the cup near the surface 1mm to 2mm in a solid state. After several hours of heating, the heat is gradually reduced, and flawless columnar crystals begin to form.
  • the mixture obtained by mixing zirconium oxide, yttrium oxide, hafnium oxide, and silicon dioxide is molded, so that the ceramic product has a higher transmittance and a stronger resistance
  • the bending strength and falling ball strength are used to make the shell of electronic products with better mechanical properties.
  • the content of the organic solvent and the type and content of the binder are controlled so that the mixture can be made into ceramic products in different ways, which is flexible in operation and has a wide application range.
  • the sintering temperature in the debinding sintering step is 1430°C to 1480°C, so that the ratio of cubic phase in the ceramic product can be increased, and yttrium oxide is added to control oxidation.
  • the content of yttrium reduces the content of alumina to increase the transmittance of ceramic products and ensure the processing yield and overall strength of zirconia ceramics.
  • the electronic device 100 of an embodiment includes a housing assembly 110.
  • the housing assembly 110 includes a base (not shown).
  • the substrate is prepared by the preparation method of the ceramic product of the above embodiment.
  • the electronic device 100 further includes a display assembly 120 and a circuit board (not shown).
  • the display assembly 120 is connected to the housing assembly 110.
  • the display component 120 can display a pattern.
  • An installation space (not shown) is defined between the display assembly 120 and the housing assembly 110.
  • the circuit board control circuit can control the normal operation of the electronic device 100.
  • the circuit board is arranged in the installation space and is electrically connected to the display assembly 120.
  • the electronic device 100 is various devices that can obtain data from the outside and process the data, or various devices that have a built-in battery and can obtain current from the outside to charge the battery.
  • the electronic device 100 may be, for example, a mobile phone, a tablet computer, a computing device, or an information display device.
  • the electronic device 100 is a mobile phone.
  • the housing assembly 110 is the back cover of the mobile phone.
  • the display assembly 120 is fixed to the substrate.
  • the electronic device 100 of the above embodiment includes a housing assembly 110, which includes a base, and the base is prepared by the method for preparing ceramic products of the above embodiment, so that the housing assembly 110 has better mechanical properties, and the base is ceramic Made of materials, the electronic device 100 has the advantages of better thermal shock resistance, fast heat dissipation, strong wear resistance, etc., and can avoid shielding the antenna signal, so that the electronic device 100 has a better signal and can be used for 5G In the device; further, the housing assembly 110 of the electronic device 100 is more beautiful, smooth, and moist as jade.
  • the housing assembly 110 is not limited to include a substrate. Please refer to FIG. 2 together.
  • the structure of the electronic device is substantially the same as the structure of the electronic device 100 of the first embodiment. The difference is that the housing The component 210 also includes a color layer 214.
  • the color layer 214 is located on the side of the substrate 212 close to the display assembly. By providing different color layers 214, the housing assembly 210 has different colors. Further, the color layer 214 is formed by spraying color ink on the substrate 212. It should be noted that the housing assembly 210 is not limited to include the substrate 212 and the color layer 214, and other existing components and structures in the housing assembly are applicable to the present application.
  • the ceramic products of Examples 1 to 9 were prepared. Among them, the mass parts of the components in the mixture of the ceramic products of Examples 1-9 are shown in Table 1; the mass parts of the components of the raw materials in the mixture of Examples 1-9 are shown in Table 2. The process parameters of the preparation process of the ceramic products of Examples 1-9 are shown in Table 3.
  • the mixture is uniformly ball-milled and placed in a mold for dry pressing to form a green body.
  • the dry pressing pressure is PMPa
  • the dry pressing temperature is T1°C
  • the holding time is t1s
  • the thickness of the blank is hmm.
  • the debinding temperature is T2°C
  • the debinding time is t2h
  • the sintering temperature is T3°C
  • the sintering time is t3h.
  • the ceramic products of Examples 10 to 12 were prepared. Among them, the mass parts of the components in the mixture of the ceramic products of Examples 10-12 are shown in Table 4; the mass parts of the components of the raw materials in the mixture of Examples 10-12 are shown in Table 5. The process parameters of the preparation process of the ceramic products of Examples 10-12 are shown in Table 6.
  • the green body is soaked in kerosene for t1h to extract the paraffin in the green body; then the dewaxed green body is placed in a debinding sintering furnace for debinding treatment to obtain ceramic products, where the preheating temperature ( The temperature of the glue preheating section is T2°C, the preheating time is t2h, the debinding temperature (ie, the temperature of the debinding section) is T3°C, the debinding time is t3h, the sintering temperature is T4°C, and the sintering time is t4h.
  • the preheating temperature The temperature of the glue preheating section is T2°C, the preheating time is t2h, the debinding temperature (ie, the temperature of the debinding section) is T3°C, the debinding time is t3h, the sintering temperature is T4°C, and the sintering time is t4h.
  • Example 12 L1(cm) 3 5 4 L2(mm) 1 10 5 T1(°C) 150 180 165 P(MPa) 75 90 83 h(mm) 0.45 0.45 0.45 t1(h) twenty four 36 30 T2(°C) 50 70 60
  • the ceramic products of Examples 13-15 were prepared. Among them, the mass parts of the components in the mixture of the ceramic products of Examples 13-15 are shown in Table 7; the mass parts of the components of the raw materials in the mixture of Examples 13-15 are shown in Table 8. The process parameters of the preparation process of the ceramic products of Examples 13-15 are shown in Table 9.
  • the blank is punched into a set size and placed in a debinding sintering furnace for debinding treatment to obtain ceramic products, where the debinding temperature (ie the temperature of the debinding section) is T3°C, and the debinding time is t3h , The sintering temperature is T4°C, and the sintering time is t4h.
  • the debinding temperature ie the temperature of the debinding section
  • the debinding time is t3h
  • the sintering temperature is T4°C
  • the sintering time is t4h.
  • Example 15 h1(mm) 1.2 2.3 1.8 V(m/min) 0.4 0.8 0.6
  • the density, transmittance, OD (optical density, optical density) value, bending strength, hardness, and falling ball strength of the ceramic products of Examples 1-15 were measured. The measurement results are shown in Table 10. Table 10 shows the density, transmittance, OD value, flexural strength, hardness, and falling ball strength of the ceramic products of Examples 1-15.
  • the density measurement in the process of making ceramic products, multiple pieces of green bodies obtained after molding with the mixture are sequentially stacked together for debinding and sintering to obtain ceramic products with a sintering shrinkage rate of about 25%; by measuring ceramics The mass and volume of the product, and the mass divided by the volume to get the density; use an analytical balance (Shanghai Xinmiao Company, model DHG-9033BS-III) to determine the quality; use a picosecond laser cutter (Han's Laser Company, model DSI9486) Cut the ceramic product into a cube with a length, width and thickness of 10 mm to obtain a cube with a volume of 103 mm 3 ;
  • Bending strength determination Use a universal material testing machine (Dongguan Weibang Instrument Equipment Co., Ltd., model WBE-9909B) and perform a four-point bending test in accordance with "GBT 6569-2006 Fine Ceramic Bending Strength Test Method" to obtain the bending strength;
  • Vickers hardness tester (Yantai Huayin Testing Instrument Co., Ltd., model HV-5) is used to determine the Vickers hardness of ceramic products according to "GB T4340.1-2009 Metal Vickers Hardness Test";
  • Falling ball strength measurement The falling ball impact tester (Yongxiong Company, model AS-DB-200) is used to determine the falling ball strength.
  • the specific measurement process is: a 32g stainless steel ball is used to freely fall at a certain height to the ceramic product, and the center of the ceramic is empty. Use a profiling jig to support and hit the same height for 5 times. If it does not break, increase the height of the ball by 5cm and repeat the above steps until the ceramic product is broken, and record the height of the ceramic product. The higher the height, the higher the The higher the falling ball intensity.
  • OD value the OD value of ceramic products using an OD value measuring instrument (Suzhou Insite Instrument Technology Co., Ltd., model LS117);
  • a near-infrared-ultraviolet spectrophotometer (purchased from Hesimiao Analytical Instruments Co., Ltd., model Shimadzu UV3600) is used to determine the transmittance of ceramic products at a wavelength of 550nm.
  • both the OD value and transmittance reflect the degree of light transmission of the material.
  • the OD value and transmittance are greatly affected by the thickness and material ratio. In the case of the same material ratio, the thickness The lower the thick transmittance, the higher the OD value.
  • the transmittance of the ceramic products of Examples 1 to 6 and Examples 10 to 15 is 41.58% to 45.24%, and the OD value is 0.344 to 0.368, indicating that the ceramic products of the above embodiments have higher transmittance and permeability Better; and, the higher the content of yttrium oxide in the raw material of the mixture, the higher the permeability of the ceramic products obtained, the lower the OD value, the more transparent the ceramic products; and when the quality of silica and alumina When the ratio is 2:1 to 2.5:1, yttrium oxide can reduce the radius of ceramic powder particles, which can inhibit the growth of ceramic powder particles, but can aggravate the agglomeration of ceramic powder particles, and the agglomeration strength is better.
  • the grain size of the ceramic powder increases and the grain boundary decreases to reduce the refraction and absorption of light and increase the transmittance; and yttrium oxide can transform the phase composition of the ceramic powder from monoclinic phase and tetragonal phase to The tetragonal phase is then transformed into a mixture of tetragonal and cubic phases, and the cubic phase has a higher transmittance to increase the transmittance of ceramic products.
  • the transmittance of the ceramic product of Example 6 is higher than that of the ceramic product of Example 8, indicating that the combination of silica and alumina can promote yttrium oxide to play a role to improve the transmittance of the ceramic product.
  • the densities of the ceramic products of Examples 1 to 6 and Examples 10 to 15 are 6.20 g/cm -2 to 6.45 g/cm -2 , indicating that the ceramic products of the above embodiments have a relatively suitable density.
  • the density of the ceramic products of Examples 1 to 2 and Example 6 is better than the density of the ceramic products of Examples 10 to 12, indicating that dry pressing molding is more beneficial than injection molding when the formulation of the raw materials of the ceramic products is the same.
  • injection molding is more conducive to increasing the density of ceramic products than cast molding when the raw material formulations of ceramic products are the same.
  • the higher the injection pressure the greater the density of the ceramic products obtained; while the cast molding
  • the middle sintering temperature has a great influence on the density of ceramic products, and the sintering temperature of 1450°C is more conducive to increasing the density of ceramic products.
  • the flexural strengths of the ceramic products of Examples 1 to 6 and Examples 10 to 15 are 1130 MPa to 1450 MPa, indicating that the ceramic products of the above-mentioned embodiments have strong flexural strength.
  • the flexural strength of the ceramic products of Examples 1 to 2 and Example 6 is better than the flexural strength of the ceramic products of Examples 13 to 15, respectively, indicating that the dry pressing ratio of the ceramic products is the same when the raw material formulations of the ceramic products are the same. Casting is more beneficial to improve the bending strength of ceramic products.
  • the flexural strength of the ceramic products of Examples 13-15 is better than the flexural strength of the ceramic products of Examples 10-12, indicating that the casting molding is more conducive to improving the ceramics than the injection molding when the ceramic products have the same raw material formulations.
  • the bending strength of the product Moreover, the higher the total content of zirconia and alumina in the same molding method, the higher the bending strength of the ceramic product.
  • the hardness of the ceramic products of Examples 1 to 6 and Examples 10 to 15 is 1210HV to 1450HV, indicating that the ceramic products of the above-mentioned embodiment have relatively strong hardness.
  • the hardness of the ceramic products of Examples 1 to 2 and Example 6 are better than those of the ceramic products of Examples 10 to 12, respectively, indicating that dry pressing molding is more advantageous than injection molding when the formulation of the raw materials of the ceramic products is the same.
  • the hardness of the ceramic products of Examples 10-12 is better than the hardness of the ceramic products of Examples 13-15, respectively, indicating that injection molding is more conducive to improving the hardness of ceramic products than casting when the formulation of the ceramic products is the same. .
  • the higher the total alumina content in the same molding method the higher the hardness of the ceramic product. It should be noted that hardness is determined by many factors. Different ceramic products have different raw material formulations and different molding methods to obtain different hardness of ceramic products.
  • the flexural strength and hardness of the ceramic product of Example 6 are better than those of the ceramic product of Example 9, indicating that the addition of alumina can improve the mechanical properties of the ceramic product; however, because alumina is milky white, it is not conducive to ceramic products
  • the transmittance of the ceramic product of Example 6 and the transmittance of the ceramic product of Example 9 are equivalent, indicating that the above-mentioned embodiment can achieve a better combination of raw materials than the ceramic product. Ceramic products with transmittance and better mechanical properties.
  • the falling ball strength of the ceramic products of Examples 1 to 6 and Examples 10 to 15 is 64.3 cm to 78.1 cm, which indicates that the ceramic products of the above-mentioned embodiment have falling ball strength.
  • the falling ball strength of the ceramic products of Examples 3 to 4 is better than that of the ceramic products of Examples 1 to 2, indicating that the mass ratio of zirconia and yttrium oxide is 20:1-22:1, which is more conducive to improving ceramics.
  • the mechanical properties of the product, and that too high yttrium oxide content will reduce the falling ball strength of ceramic products.
  • the falling ball strength of the ceramic products of Examples 1 to 2 and Example 6 is better than that of the ceramic products of Examples 10 to 12, respectively, indicating that dry press molding is more advantageous than injection molding when the ceramic products have the same formulation of raw materials Improve the falling ball strength of ceramic products; and in dry pressing, the greater the dry pressure, the higher the falling ball strength of ceramic products.
  • the falling ball strength of the ceramic products of Examples 10-12 is better than the falling ball strength of the ceramic products of Examples 13-15, indicating that injection molding is more conducive to improving ceramic products than cast molding when the formulation of the ceramic products is the same. In injection molding, the higher the injection pressure, the higher the falling ball strength of ceramic products.
  • the ceramic products of the above embodiments have a reasonable raw material ratio, and the ceramic products obtained have higher transmittance and better mechanical properties, and can be used to prepare the housing of electronic products.

Abstract

Disclosed is a ceramic article. The raw materials for preparing the ceramic article include (in parts by mass): 85-95 parts of zirconium oxide, 2-5 parts of yttrium oxide, 1-2.5 parts of hafnium oxide, 0.2-1 parts of silicon dioxide, 0.1-0.5 parts of zinc oxide, 0.1-0.5 parts of aluminum oxide, 0.001-0.1 parts of iron sesquioxide, 0.01-0.5 parts of titanium oxide and 0.01-0.1 parts of nickel oxide.

Description

陶瓷制品及其制备方法和电子设备Ceramic product and its preparation method and electronic equipment 技术领域Technical field
本发明涉及材料技术领域,特别是涉及一种陶瓷制品及其制备方法和电子设备。The invention relates to the technical field of materials, in particular to a ceramic product, a preparation method thereof, and electronic equipment.
背景技术Background technique
氧化锆(化学式为ZrO 2)是锆的主要氧化物,化学性质不活泼,具有高熔点、高电阻率、高折射率和低热膨胀系数的性质,能够作为耐高温材料、陶瓷绝缘材料和陶瓷遮光剂。然而,一般的氧化锆材料制成的陶瓷制品的透过率较低,约为20%,严重限制陶瓷制品的使用。 Zirconia (chemical formula is ZrO 2 ) is the main oxide of zirconium. It is chemically inactive. It has high melting point, high resistivity, high refractive index and low thermal expansion coefficient. It can be used as high temperature resistant material, ceramic insulating material and ceramic shading Agent. However, the permeability of ceramic products made of general zirconia materials is low, about 20%, which severely limits the use of ceramic products.
发明内容Summary of the invention
基于此,有必要提供一种陶瓷制品及其制备方法和电子设备。Based on this, it is necessary to provide a ceramic product and its preparation method and electronic equipment.
一种陶瓷制品,以质量份数计,制备所述陶瓷制品的原料包括:A ceramic product, in parts by mass, the raw materials for preparing the ceramic product include:
Figure PCTCN2020102284-appb-000001
Figure PCTCN2020102284-appb-000001
一种电子设备,包括:An electronic device including:
壳体组件,包括以上所述的陶瓷制品,所述壳体组件形成安装空间;A housing assembly, including the above-mentioned ceramic products, the housing assembly forming an installation space;
显示组件,连接于所述壳体组件;及A display assembly connected to the housing assembly; and
电路板,设于所述安装空间并与所述显示组件电连接。The circuit board is arranged in the installation space and electrically connected with the display assembly.
一种陶瓷制品的制备方法,包括如下步骤:A method for preparing ceramic products includes the following steps:
将原料混合,得到混合料,其中,所述原料以质量份数计包括85份~95份的氧化锆、2份~5份的氧化钇、1份~2.5份的氧化铪、0.2份~1份的二氧化硅、0.1份~0.5份的氧化铝、0.1份~0.5份的氧化锌、0.001份~0.1份的三氧化二铁、0.01份~0.1份的氧化镍及0.01份~0.5份的氧化钛;及The raw materials are mixed to obtain a mixture, wherein the raw materials include 85 parts to 95 parts of zirconia, 2 parts to 5 parts of yttrium oxide, 1 part to 2.5 parts of hafnium oxide, 0.2 parts to 1 part by mass. Parts of silica, 0.1 parts to 0.5 parts of alumina, 0.1 parts to 0.5 parts of zinc oxide, 0.001 parts to 0.1 parts of ferric oxide, 0.01 parts to 0.1 parts of nickel oxide, and 0.01 parts to 0.5 parts of Titanium oxide; and
将所述混合料成型,得到陶瓷制品。The mixture is shaped to obtain ceramic products.
一种陶瓷制品,由上述陶瓷制品的制备方法制备得到。A ceramic product is prepared by the preparation method of the above ceramic product.
一种电子设备,包括:An electronic device including:
壳体组件,包括基底,所述基底由上述所述的陶瓷制品的制备方法制备得到;The housing assembly includes a substrate, which is prepared by the above-mentioned method for preparing ceramic products;
显示组件,与所述壳体组件连接,所述显示组件和所述壳体组件之间限定出安装空间;及A display assembly connected to the housing assembly, and an installation space is defined between the display assembly and the housing assembly; and
电路板,设置在所述安装空间内且与所述显示组件电连接。The circuit board is arranged in the installation space and is electrically connected to the display assembly.
附图说明Description of the drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根 据这些附图获得其他实施例的附图。In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, without creative work, the drawings of other embodiments can also be obtained based on these drawings.
图1为一实施方式的电子产品的结构示意图;FIG. 1 is a schematic diagram of the structure of an electronic product according to an embodiment;
图2为另一实施方式的电子产品的壳体组件的截面示意图。2 is a schematic cross-sectional view of a housing assembly of an electronic product according to another embodiment.
具体实施方式detailed description
为了便于理解本发明,下面将参照相关附图对本发明进行更全面的描述。附图中给出了本发明的较佳的实施例。但是,本发明可以以许多不同的形式来实现,并不限于本文所描述的实施例。相反地,提供这些实施例的目的是使对本发明的公开内容的理解更加透彻全面。In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The drawings show preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.
一实施方式的陶瓷制品具有较高的透过率,能够用于制备外观效果较好的电子产品的外壳。制备该陶瓷制品的原料以质量份数计包括85份~95份的氧化锆、2份~5份的氧化钇、1份~2.5份的氧化铪、0.2份~1份的二氧化硅、0.1份~0.5份的氧化铝、0.1份~0.5份的氧化锌、0.001份~0.1份的三氧化二铁、0.01份~0.1份的氧化镍及0.01份~0.5份的氧化钛。The ceramic product of one embodiment has a relatively high transmittance, and can be used to prepare a housing of an electronic product with a better appearance. The raw materials for preparing the ceramic products include 85 to 95 parts of zirconia, 2 to 5 parts of yttrium oxide, 1 to 2.5 parts of hafnium oxide, 0.2 to 1 part of silicon dioxide, 0.1 Parts to 0.5 parts of alumina, 0.1 parts to 0.5 parts of zinc oxide, 0.001 parts to 0.1 parts of ferric oxide, 0.01 parts to 0.1 parts of nickel oxide, and 0.01 parts to 0.5 parts of titanium oxide.
一些研究通过共沉淀方式在氧化锆粉体中掺杂氧化铝,提升其力学特性。由于氧化铝为乳白色,氧化铝的添加导致陶瓷制品的透过率较低,通常厚度为0.45mm的陶瓷制品的透过率为20%左右,严重限制陶瓷制品的使用。上述陶瓷制品的原料配比合理,使得陶瓷制品具有较高的透过率,并且使得陶瓷制品具有较优的力学性能较好。Some researches doped alumina into zirconia powder by co-precipitation method to improve its mechanical properties. Since alumina is milky white, the addition of alumina results in a low transmittance of ceramic products. Generally, the transmittance of ceramic products with a thickness of 0.45 mm is about 20%, which severely limits the use of ceramic products. The above-mentioned ceramic products have a reasonable ratio of raw materials, so that the ceramic products have a higher transmittance, and the ceramic products have better mechanical properties.
氧化锆即ZrO 2,为陶瓷制品的基料,具有高熔点、高电阻率、高折射率和低热膨胀系数的性质,使得陶瓷制品能够耐高温,且具有较好绝缘性。进一步地,制备陶瓷制品的原料中氧化锆的质量份数为87份~93份。在其中一些实施例中,制备陶瓷制品的原料中氧化锆的质量份数为85份、87份、90份、93份或者95份。 Zirconia, or ZrO 2 , is the base material of ceramic products. It has the properties of high melting point, high electrical resistivity, high refractive index and low thermal expansion coefficient, which enable ceramic products to withstand high temperatures and have good insulation. Further, the mass parts of zirconia in the raw materials for preparing the ceramic products are 87 parts to 93 parts. In some of the embodiments, the mass parts of zirconia in the raw materials for preparing the ceramic products are 85 parts, 87 parts, 90 parts, 93 parts, or 95 parts.
氧化钇即Y 2O 3能够使得陶瓷粉体粒子半径减小,能够抑制陶瓷粉体粒子的长大趋势,但是能够加剧陶瓷粉体粒子的团聚,且团聚强度较好,陶瓷粉体的晶粒尺寸增大,晶界减少,以降低对光线的折射和吸收,而提高透过率;并且氧化钇能够使陶瓷粉体的相组成成分从单斜相和四方相转变为四方相,再转变为四方相与立方相的混合,而立方相的透过率较高,以增加陶瓷制品的透过率。 Yttrium oxide, namely Y 2 O 3 , can reduce the radius of ceramic powder particles, which can inhibit the growth of ceramic powder particles, but can aggravate the agglomeration of ceramic powder particles, and the agglomeration strength is better. The size increases and the grain boundary decreases to reduce the refraction and absorption of light and increase the transmittance; and yttrium oxide can change the phase composition of the ceramic powder from monoclinic and tetragonal phases to tetragonal phases, and then to The tetragonal phase and the cubic phase are mixed, and the cubic phase has a higher transmittance to increase the transmittance of ceramic products.
进一步地,制备陶瓷制品的原料中氧化钇的质量份数为2.5份~4.5份。在其中一些实施例中,制备陶瓷制品的原料中氧化钇的质量份数为2份、2.5份、3份、3.5份、4份、4.5份或者5份。Further, the mass parts of yttrium oxide in the raw materials for preparing the ceramic products are 2.5 to 4.5 parts. In some of the embodiments, the mass parts of yttrium oxide in the raw materials for preparing ceramic products are 2, 2.5, 3, 3.5, 4, 4.5, or 5 parts.
在其中一个实施例中,氧化锆与氧化钇的质量比为20:1~22:1。此种设置既能够提高陶瓷制品的透过率,又能够使得陶瓷制品具有较强的韧性和较好的加工特性。In one of the embodiments, the mass ratio of zirconium oxide to yttrium oxide is 20:1-22:1. This arrangement can not only improve the transmittance of ceramic products, but also make the ceramic products have stronger toughness and better processing characteristics.
铪与锆为同族元素,化学性质相似。添加质量份数为1份~2.5份的氧化铪(即HfO 2)能够保证陶瓷制品的力学性能。 Hafnium and zirconium are elements of the same family and have similar chemical properties. Adding 1 part to 2.5 parts by mass of hafnium oxide (ie HfO 2 ) can ensure the mechanical properties of ceramic products.
二氧化硅(即SiO 2)具有较强的耐酸性和耐高温性能,能够提高陶瓷制品的耐酸性和耐高温,并且二氧化硅在高温状态时呈现白色,还能够调节陶瓷制品的颜色,以提高陶瓷制品的亮度。进一步地,制备陶瓷制品的原料中二氧化硅的质量份数为0.4份~0.8份。在其中一些实施例中,制备陶瓷制品的原料中二氧化硅的质量份数为0.2份、0.3份、0.4份、0.5份、0.6份、0.7份、0.8份、0.9份或者1份。 Silica (ie SiO 2 ) has strong acid resistance and high temperature resistance, which can improve the acid resistance and high temperature resistance of ceramic products, and the silica appears white at high temperatures, and can also adjust the color of ceramic products. Improve the brightness of ceramic products. Further, the mass parts of silica in the raw materials for preparing the ceramic products are 0.4 parts to 0.8 parts. In some of the embodiments, the mass parts of silica in the raw materials for preparing the ceramic products are 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, 0.6 parts, 0.7 parts, 0.8 parts, 0.9 parts, or 1 part.
一般地,陶瓷制品中氧化铝的质量百分含量为5%~9%,能够使陶瓷制品具有较高的硬度。然而,氧化铝为乳白色,导致陶瓷制品的透过率较低。而上述实施方式的陶瓷制品通过加入氧化铝并优化氧化铝的含量,既能够提高陶瓷制品的亮度,使陶瓷制品具有较高的透过率,又能够保证陶瓷制品的力学性能。进一步地,制备陶瓷制品的原料中氧化铝的质量份数为0.1份~0.4份。在其中一些实施例中,制备陶瓷制品的原料中氧化铝的质量份数为0.1份、0.15份、0.2份、0.25份、0.3份、0.35份、0.4份、0.45份或者0.5份。Generally, the mass percentage of alumina in ceramic products is 5%-9%, which can make the ceramic products have higher hardness. However, alumina is milky white, resulting in low permeability of ceramic products. The ceramic products of the above embodiment can not only improve the brightness of the ceramic products by adding alumina and optimize the content of alumina, so that the ceramic products have a higher transmittance, but also can ensure the mechanical properties of the ceramic products. Further, the mass parts of alumina in the raw materials for preparing the ceramic products are 0.1 to 0.4 parts. In some of the embodiments, the mass parts of alumina in the raw materials for preparing the ceramic products are 0.1 part, 0.15 part, 0.2 part, 0.25 part, 0.3 part, 0.35 part, 0.4 part, 0.45 part, or 0.5 part.
在其中一个实施例中,二氧化硅与氧化铝的质量比为2:1~2.5:1。此种设置既能够提高陶瓷制品的透过率,又能够提高陶瓷制品的力学性能。In one of the embodiments, the mass ratio of silica to alumina is 2:1 to 2.5:1. This arrangement can not only improve the transmittance of ceramic products, but also improve the mechanical properties of ceramic products.
氧化锌是一种白色的颜料,能够调节陶瓷制品的颜色,使得陶瓷制品具有较高的透过率,还能够增加陶瓷制品的力学性能。进一步地,制备陶瓷制品的原料中氧化锌的质量份数为0.1份~0.4份。在其中一些实施例中,制备陶瓷制品的原料中氧化锌的质量份数为0.1份、0.15份、0.2份、0.25份、0.3份、0.35份、0.4份、0.45份或者0.5份。Zinc oxide is a white pigment that can adjust the color of ceramic products, so that ceramic products have higher transmittance, and can also increase the mechanical properties of ceramic products. Further, the mass parts of zinc oxide in the raw materials for preparing the ceramic products are 0.1 to 0.4 parts. In some of the embodiments, the mass parts of zinc oxide in the raw materials for preparing the ceramic products are 0.1 parts, 0.15 parts, 0.2 parts, 0.25 parts, 0.3 parts, 0.35 parts, 0.4 parts, 0.45 parts, or 0.5 parts.
三氧化二铁能够调节陶瓷制品的颜色,提高陶瓷制品的力学性能。进一步地,制备陶瓷制品的原料中,三氧化二铁的质量份数为0.01份~0.05份。在其中一些实施例中,制备陶瓷制品的原料中,三氧化二铁的质量份数为0.001份、0.005份、0.01份、0.02份、0.03份、0.04份、0.05份、0.06份、0.07份、0.08份、0.09份或者0.1份。Ferric oxide can adjust the color of ceramic products and improve the mechanical properties of ceramic products. Further, in the raw materials for preparing ceramic products, the mass parts of iron trioxide is 0.01 parts to 0.05 parts. In some of the embodiments, in the raw materials for preparing ceramic products, the mass parts of iron trioxide are 0.001 parts, 0.005 parts, 0.01 parts, 0.02 parts, 0.03 parts, 0.04 parts, 0.05 parts, 0.06 parts, 0.07 parts, 0.08 parts, 0.09 parts or 0.1 parts.
氧化镍为绿色,而三氧化二铁为棕红色,二者的颜色为相消色,氧化镍和三氧化二铁能够削弱彼此的色相,以呈现黑色或者灰色,以提高陶瓷制品的透过率,并且氧化镍的添加还能够提高陶瓷制品的力学性能。进一步地,制备陶瓷制品的原料中,氧化镍的质量份数为0.03份~0.07份。在其中一些实施例中,制备陶瓷制品的原料中,氧化镍的质量份数为0.01份、0.02份、0.03份、0.04份、0.05份、0.06份、0.07份、0.08份、0.09份或者0.1份。Nickel oxide is green, while ferric oxide is brownish red. The colors of the two are abolished. Nickel oxide and ferric oxide can weaken each other's hue to appear black or gray to increase the transmittance of ceramic products. And the addition of nickel oxide can also improve the mechanical properties of ceramic products. Further, in the raw materials for preparing ceramic products, the mass parts of nickel oxide are 0.03 parts to 0.07 parts. In some embodiments, in the raw materials for preparing ceramic products, the mass parts of nickel oxide are 0.01 parts, 0.02 parts, 0.03 parts, 0.04 parts, 0.05 parts, 0.06 parts, 0.07 parts, 0.08 parts, 0.09 parts, or 0.1 parts. .
氧化钛是一种白色颜料,能够提高陶瓷制品的亮度,增加陶瓷制品的透过率。进一步地,制备陶瓷制品的原料中,氧化钛的质量份数为0.2份~0.4份。在其中一些实施例中,制备陶瓷制品的原料中,氧化钛的质量份数为0.01份、0.05份、0.1份、0.15份、0.2份、0.25份、0.3份、0.35份、0.4份、0.45份或者0.5份。Titanium oxide is a white pigment that can improve the brightness of ceramic products and increase the transmittance of ceramic products. Further, in the raw materials for preparing ceramic products, the mass parts of titanium oxide is 0.2 to 0.4 parts. In some of the embodiments, in the raw materials for preparing ceramic products, the mass parts of titanium oxide are 0.01 parts, 0.05 parts, 0.1 parts, 0.15 parts, 0.2 parts, 0.25 parts, 0.3 parts, 0.35 parts, 0.4 parts, 0.45 parts Or 0.5 servings.
在其中一个实施例中,制备陶瓷制品的原料以质量份数计由如下组分构成:85份~95份的氧化锆、2份~5份的氧化钇、1份~2.5份的氧化铪、0.2份~1份的二氧化硅、0.1~0.5份的氧化铝、0.1份~0.5份的氧化锌、0.001份~0.1份的三氧化二铁0.01~0.1份的氧化镍和0.01~0.5份的氧化钛。此种设置使得陶瓷制品具有较高的透过率和较优的力学性能。In one of the embodiments, the raw materials for preparing ceramic products consist of the following components in parts by mass: 85 to 95 parts of zirconia, 2 to 5 parts of yttrium oxide, 1 to 2.5 parts of hafnium oxide, 0.2 to 1 part of silica, 0.1 to 0.5 part of alumina, 0.1 to 0.5 part of zinc oxide, 0.001 to 0.1 part of ferric oxide, 0.01 to 0.1 part of nickel oxide and 0.01 to 0.5 part of Titanium oxide. This arrangement makes the ceramic products have higher transmittance and better mechanical properties.
在其中一个实施例中,制备陶瓷制品的原料混合后得到的陶瓷粉体的粒径(D 50,中位径或中值粒径)为500nm~1200nm。此种设置使得陶瓷制品具有较高的透过率较高和较优的力学性能较好。 In one of the embodiments, the particle size (D 50 , median diameter or median particle size) of the ceramic powder obtained after mixing the raw materials for preparing the ceramic product is 500 nm to 1200 nm. This arrangement makes the ceramic products have higher transmittance and better mechanical properties.
上述陶瓷制品的原料以质量份数计包括85份~95份的氧化锆、2份~5份的氧化钇、1份~2.5份的氧化铪、0.2份~1份的二氧化硅、0.1~0.5份的氧化铝、0.1份~0.5份的氧化锌、0.001份~0.1份的三氧化二铁、0.01~0.5份的氧化钛和0.01~0.1份的氧化镍,配比合理,使得陶瓷制品具有较高的透过率较高。经试验验证,采用上述陶瓷制品的透过率大于40%,具有较高的透过率。The raw materials of the above ceramic products include 85 to 95 parts of zirconia, 2 to 5 parts of yttrium oxide, 1 to 2.5 parts of hafnium oxide, 0.2 to 1 part of silicon dioxide, 0.1 to 0.5 parts of aluminum oxide, 0.1 parts to 0.5 parts of zinc oxide, 0.001 parts to 0.1 parts of ferric oxide, 0.01 to 0.5 parts of titanium oxide and 0.01 to 0.1 parts of nickel oxide, the ratio is reasonable, so that the ceramic products have Higher transmittance is higher. It has been verified by experiments that the transmittance of the above ceramic products is greater than 40% and has a higher transmittance.
进一步地,上述陶瓷制品通过优化氧化铝的含量,使得陶瓷制品能够兼具较高透过率和较优力学性能,以用于电子产品的外壳。Further, by optimizing the content of alumina in the above ceramic products, the ceramic products can have both higher transmittance and better mechanical properties for use in the housing of electronic products.
一实施方式的陶瓷制品的制备方法,能够制备透过率较高且力学性能较好的陶瓷制品。该陶瓷制品的制备方法包括如下步骤S110~S120:The method for preparing ceramic products according to one embodiment can prepare ceramic products with higher transmittance and better mechanical properties. The preparation method of the ceramic product includes the following steps S110 to S120:
S110、将原料混合,得到混合料,其中,原料以质量份数计包括85份~95份的氧化锆、2份~5份的氧化钇、1份~2.5份的氧化铪、0.2份~1份的二氧化硅、0.1~0.5份的氧化铝、0.1份~0.5份的氧化锌、0.001份~0.1份的三氧化二铁、0.01~0.1份的氧化镍和0.01~0.5份的氧化钛。S110. Mix the raw materials to obtain a mixture, wherein the raw materials include 85 parts to 95 parts of zirconia, 2 parts to 5 parts of yttrium oxide, 1 part to 2.5 parts of hafnium oxide, 0.2 parts to 1 part by mass. Parts of silica, 0.1-0.5 parts of alumina, 0.1-0.5 parts of zinc oxide, 0.001-0.1 parts of ferric oxide, 0.01-0.1 parts of nickel oxide, and 0.01-0.5 parts of titanium oxide.
在其中一个实施例中,原料中氧化锆的质量份数为87份~93份。在其中一些实施例中,原料中氧化锆的质量份数为85份、87份、90份、93份或者95份。In one of the embodiments, the mass parts of zirconium oxide in the raw material is 87 parts to 93 parts. In some of the embodiments, the mass parts of zirconium oxide in the raw materials are 85 parts, 87 parts, 90 parts, 93 parts, or 95 parts.
在其中一个实施例中,原料中氧化钇的质量份数为2.5份~4.5份。在其中一些实施例中,原料中氧化钇的质量份数为2份、2.5份、3份、3.5份、4份、4.5份或者5份。In one of the embodiments, the mass parts of yttrium oxide in the raw material is 2.5 parts to 4.5 parts. In some of the embodiments, the mass parts of yttrium oxide in the raw materials are 2, 2.5, 3, 3.5, 4, 4.5, or 5 parts.
在其中一个实施例中,氧化锆与氧化钇的质量比为20:1~22:1。In one of the embodiments, the mass ratio of zirconium oxide to yttrium oxide is 20:1-22:1.
铪与锆为同族元素,化学性质相似。添加质量份数为1份~2.5份的氧化铪(即HfO 2)能够保证陶瓷制品的力学性能。 Hafnium and zirconium are elements of the same family and have similar chemical properties. Adding 1 part to 2.5 parts by mass of hafnium oxide (ie HfO 2 ) can ensure the mechanical properties of ceramic products.
在其中一个实施例中,原料中二氧化硅的质量份数为0.4份~0.8份。在其中一些实施例中,原料中二氧化硅的质量份数为0.2份、0.3份、0.4份、0.5份、0.6份、0.7份、0.8份、0.9份或者1份。In one of the embodiments, the mass parts of silica in the raw material is 0.4 parts to 0.8 parts. In some of the embodiments, the mass parts of silica in the raw materials are 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part or 1 part.
在其中一个实施例中,原料中氧化铝的质量份数为0.1份~0.4份。在其中一些实施例中,原料中氧化铝的质量份数为0.1份、0.15份、0.2份、0.25份、0.3份、0.35份、0.4份、0.45份或者0.5份。In one of the embodiments, the mass part of alumina in the raw material is 0.1 part to 0.4 part. In some embodiments, the mass parts of alumina in the raw materials are 0.1 part, 0.15 part, 0.2 part, 0.25 part, 0.3 part, 0.35 part, 0.4 part, 0.45 part, or 0.5 part.
在其中一个实施例中,二氧化硅与氧化铝的质量比为2:1~2.5:1。In one of the embodiments, the mass ratio of silica to alumina is 2:1 to 2.5:1.
在其中一个实施例中,原料中氧化锌的质量份数为0.1份~0.4份。在其中一些实施例中,原料中氧化锌的质量份数为0.1份、0.15份、0.2份、0.25份、0.3份、0.35份、0.4份、0.45份或者0.5份。In one of the embodiments, the mass part of zinc oxide in the raw material is 0.1 part to 0.4 part. In some embodiments, the mass parts of zinc oxide in the raw materials are 0.1 part, 0.15 part, 0.2 part, 0.25 part, 0.3 part, 0.35 part, 0.4 part, 0.45 part or 0.5 part.
在其中一个实施例中,原料中,三氧化二铁的质量份数为0.01份~0.05份。在其中一些实施例中,原料中,三氧化二铁的质量份数为0.001份、0.01份、0.02份、0.03份、0.04份、0.05份、0.06份、0.07份、0.08份、0.09份或者0.1份。In one of the embodiments, the mass parts of the iron trioxide in the raw materials is 0.01 parts to 0.05 parts. In some embodiments, the mass parts of iron trioxide in the raw materials are 0.001 parts, 0.01 parts, 0.02 parts, 0.03 parts, 0.04 parts, 0.05 parts, 0.06 parts, 0.07 parts, 0.08 parts, 0.09 parts, or 0.1 parts by mass. Copies.
在其中一个实施例中,原料中,氧化镍的质量份数为0.03份~0.07份。在其中一些实施例中,原料中,氧化镍的质量份数为0.01份、0.02份、0.03份、0.04份、0.05份、0.06份、0.07份、0.08份、0.09份或者0.1份。In one of the embodiments, the mass parts of nickel oxide in the raw materials are 0.03 parts to 0.07 parts. In some embodiments, the mass parts of nickel oxide in the raw materials are 0.01 part, 0.02 part, 0.03 part, 0.04 part, 0.05 part, 0.06 part, 0.07 part, 0.08 part, 0.09 part, or 0.1 part.
在其中一个实施例中,原料中,氧化钛的质量份数为0.2份~0.4份。在其中一些实施例中,原料中,氧化钛的质量份数为0.01份、0.05份、0.1份、0.15份、0.2份、0.25份、0.3份、0.35份、0.4份、0.45份或者0.5份。In one of the embodiments, the mass part of titanium oxide in the raw material is 0.2 to 0.4 parts. In some embodiments, the mass parts of titanium oxide in the raw materials are 0.01 parts, 0.05 parts, 0.1 parts, 0.15 parts, 0.2 parts, 0.25 parts, 0.3 parts, 0.35 parts, 0.4 parts, 0.45 parts, or 0.5 parts.
在其中一个实施例中,原料以质量份数计由如下组分构成:85份~95份的氧化锆、2份~5份的氧化钇、1份~2.5份的氧化铪、0.2份~1份的二氧化硅、0.1~0.5份的氧化铝、0.1份~0.5份的氧化锌、0.001份~0.1份的三氧化二铁、0.01~0.1份的氧化镍和0.01~0.5份的氧化钛。In one of the embodiments, the raw material is composed of the following components in parts by mass: 85 to 95 parts of zirconia, 2 to 5 parts of yttrium oxide, 1 to 2.5 parts of hafnium oxide, 0.2 to 1 part Parts of silica, 0.1-0.5 parts of alumina, 0.1-0.5 parts of zinc oxide, 0.001-0.1 parts of ferric oxide, 0.01-0.1 parts of nickel oxide, and 0.01-0.5 parts of titanium oxide.
在其中一个实施例中,原料混合后得到的陶瓷粉体的粒径(D 50,中位径或中值粒径)为500nm~1200nm。 In one of the embodiments, the particle size (D 50 , median diameter or median particle size) of the ceramic powder obtained after mixing the raw materials is 500 nm to 1200 nm.
在其中一个实施例中,将原料混合,得到混合料的步骤包括:将原料、消泡剂、增塑剂、粘结剂和有机溶剂混合,得到混合料。In one of the embodiments, the step of mixing the raw materials to obtain the mixture includes: mixing the raw materials, the defoamer, the plasticizer, the binder and the organic solvent to obtain the mixture.
在其中一个实施例中,消泡剂包括二甲基硅氧烷。需要说明的是,消泡剂不限于上述指出的消泡剂,也可以为其他陶瓷领域中的消泡剂。可以根据需要进行设置。In one of the embodiments, the antifoaming agent includes dimethylsiloxane. It should be noted that the defoaming agent is not limited to the defoaming agent indicated above, and can also be other defoaming agents in the ceramic field. It can be set as required.
在其中一个实施例中,混合料中,消泡剂的质量份数为3份~4份。在其中一些实施例中,混合料中,消泡剂的质量份数为2份、2.5份、3份、3.5份、4份、4.5份或者5份。In one of the embodiments, the mass parts of the defoamer in the mixture is 3 to 4 parts. In some of the embodiments, the mass parts of the defoamer in the mixture are 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts or 5 parts.
增塑剂能够改善混合料的性能,使得陶瓷制品具有较高的韧性和塑性。进一步地,增塑剂包括邻苯二甲基二丁酯(即DBP,Dibutyl phthalate)、邻苯二甲酸丁苄酯(即BBP,Benzyl butyl phthalate)及邻苯二甲酸二辛酯(即DOP,Dioctyl Phthalate)中的至少一种。需要说明的是,增塑剂不限于上述指出的增塑剂,也可以为其他陶瓷领域中的增塑剂。可以根据需要进行设置。Plasticizers can improve the performance of the mixture and make ceramic products have higher toughness and plasticity. Further, plasticizers include dibutyl phthalate (ie DBP, Dibutyl phthalate), butyl benzyl phthalate (ie BBP, Benzyl butyl phthalate), and dioctyl phthalate (ie DOP, At least one of Dioctyl Phthalate). It should be noted that the plasticizer is not limited to the plasticizers indicated above, and can also be plasticizers in other ceramic fields. It can be set as required.
在其中一个实施例中,混合料中,增塑剂的质量份数为6份~9份。进一步地,混合料中,增塑剂的质量份数为7份~8份。在其中一些实施例中,混合料中,增塑剂的质量份数为5份、5.5份、6份、6.5份、7份、7.5份、8份、8.5份、9份、9.5份或者10份。In one of the embodiments, the mass parts of the plasticizer in the mixture is 6-9 parts. Further, in the mixture, the mass parts of the plasticizer is 7 to 8 parts. In some embodiments, the mass parts of the plasticizer in the mixture are 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7 parts, 7.5 parts, 8 parts, 8.5 parts, 9 parts, 9.5 parts or 10 parts by mass. Copies.
有机溶剂能调节混合料的粘度。进一步地,有机溶剂包括乙醇、甲苯及乙二醇中的至少一种。此种设置使得陶瓷制品具有较高的致密度,以提高陶瓷制品的硬度。更进一步地,有机溶剂包括甲苯及乙二醇。甲苯及乙二醇的质量比为7:3~9:3。此种设置既能降低甲苯带来的毒性,同时兼顾有机溶剂对陶瓷粉料均匀分散的特性。需要说明的是,能够通过控 制有机溶剂的质量份数,以使的混合料通过不同的方式成型制成陶瓷制品。Organic solvents can adjust the viscosity of the mixture. Further, the organic solvent includes at least one of ethanol, toluene and ethylene glycol. This arrangement makes the ceramic products have a higher density, so as to improve the hardness of the ceramic products. Furthermore, the organic solvent includes toluene and ethylene glycol. The mass ratio of toluene and ethylene glycol is 7:3-9:3. This setting can not only reduce the toxicity caused by toluene, but also take into account the uniform dispersion of the ceramic powder by the organic solvent. It should be noted that, by controlling the mass fraction of the organic solvent, the mixture can be molded into ceramic products in different ways.
在其中一个实施例中,混合料中,有机溶剂的质量份数为5份~10份。此种设置的混合料能够通过干压成型或者注射成型制成陶瓷制品。In one of the embodiments, the mass parts of the organic solvent in the mixture is 5-10 parts. The mixture with such a setting can be made into ceramic products by dry pressing or injection molding.
在其中一个实施例中,混合料中,有机溶剂的质量份数为10份~20份。此种设置的混合料能够通过流延成型制成陶瓷制品。进一步地,混合料的黏度为400cps~2000cps。此种设置更利于混合料成型制成坯体。In one of the embodiments, the mass parts of the organic solvent in the mixture is 10 parts to 20 parts. The mixed material with this arrangement can be made into ceramic products by casting. Further, the viscosity of the mixture is 400 cps to 2000 cps. This arrangement is more conducive to the molding of the mixture into a green body.
在其中一个实施例中,粘结剂包括聚甲基丙烯酸甲酯(即PMMA,poly(methyl methacrylate))、聚乙烯醇缩丁醛(即PVB,polyvinyl butyral)、石蜡及聚丙烯(即PP,polypropylene)中的至少一种。需要说明的是,粘结剂不限于上述指出的粘结剂,也可以为其他陶瓷材料中的粘结剂。可以根据需要进行设置。需要说明的是,能够通过控制粘结剂的种类和质量份数,以使得混合料能够通过不同的成型方式制成陶瓷制品。In one of the embodiments, the binder includes polymethyl methacrylate (PMMA, poly(methyl methacrylate)), polyvinyl butyral (PVB, polyvinyl butyral), paraffin wax and polypropylene (PP, at least one of polypropylene). It should be noted that the adhesive is not limited to the above-mentioned adhesives, and may also be adhesives in other ceramic materials. It can be set as required. It should be noted that the type and mass fraction of the binder can be controlled so that the mixture can be made into ceramic products by different molding methods.
在其中一个实施例中,粘结剂包括聚甲基丙烯酸甲酯及聚乙烯醇缩丁醛中的至少一种。此种设置的混合料能够通过干压成型或者流延成型制成陶瓷制品。进一步地,混合料中,粘结剂的质量份数为7份~10份。在其中一些实施例中,混合料中,粘结剂的质量份数为7份、8份、9份或者10份。In one of the embodiments, the binder includes at least one of polymethyl methacrylate and polyvinyl butyral. The mixture with such a setting can be made into ceramic products by dry pressing or casting. Further, in the mixture, the mass parts of the binder are 7-10 parts. In some of the embodiments, the mass parts of the binder in the mixture is 7, 8, 9 or 10 parts.
在其中一个实施例中,粘结剂包括石蜡及聚丙烯中的至少一种。此种设置的混合料能够通过注射成型制成陶瓷制品。进一步地,粘结剂包括石蜡及聚丙烯。石蜡及聚丙烯的质量比为6:4~9:1。此种设置的混合料能够通过注射成型制成具有较高透过率和较优力学性能的陶瓷制品。更进一步地,混合料中,粘结剂的质量份数为10份~15份。具体地,混合料中,粘结剂的质量份数为11份~14份。在其中一些实施例中,混合料中,粘结剂的质量份数为10份、11份、12份、13份、14份或者15份。In one of the embodiments, the binder includes at least one of paraffin wax and polypropylene. The mixture with such a setting can be made into ceramic products by injection molding. Further, the binder includes paraffin wax and polypropylene. The mass ratio of paraffin wax and polypropylene is 6:4-9:1. The mixed material with this arrangement can be made into ceramic products with higher transmittance and better mechanical properties through injection molding. Furthermore, in the mixture, the mass parts of the binder are 10 parts to 15 parts. Specifically, in the mixture, the mass parts of the binder are 11 parts to 14 parts. In some embodiments, the mass parts of the binder in the mixture are 10 parts, 11 parts, 12 parts, 13 parts, 14 parts or 15 parts.
在其中一个实施例中,混合料以质量份数计包括60份~78份的原料、2份~5份的消泡剂、5份~10份的增塑剂、10份~15份的粘结剂和5份~10份的有机溶剂。粘结剂包括石蜡及聚丙烯。石蜡及聚丙烯的质量比为6:4~9:1。此种设置使得混合料能够通过注射成型制成陶瓷制品,且得到具有较高的透过率和较优的力学性能的陶瓷制品。In one of the embodiments, the mixture includes 60 parts to 78 parts of raw materials, 2 parts to 5 parts of defoamer, 5 parts to 10 parts of plasticizer, and 10 parts to 15 parts of viscosity. Binder and 5-10 parts of organic solvent. Binders include paraffin and polypropylene. The mass ratio of paraffin wax and polypropylene is 6:4-9:1. This arrangement enables the mixture to be made into ceramic products by injection molding, and obtains ceramic products with higher transmittance and better mechanical properties.
在其中一个实施例中,混合料以质量份数计包括65份~81份的原料、2份~5份的消泡剂、5份~10份的增塑剂、7份~10份的粘结剂和5份~10份的有机溶剂,粘结剂包括聚甲基丙烯酸甲酯及聚乙烯醇缩丁醛中的至少一种。此种设置使得混合料能够通过干压成型制成陶瓷制品,且得到具有较高的透过率和较优的力学性能的陶瓷制品。In one embodiment, the mixture includes 65 to 81 parts of raw material, 2 to 5 parts of defoamer, 5 to 10 parts of plasticizer, 7 to 10 parts of viscous Binder and 5-10 parts of organic solvent, and the binder includes at least one of polymethyl methacrylate and polyvinyl butyral. This arrangement enables the mixture to be formed into ceramic products by dry pressing, and to obtain ceramic products with higher transmittance and better mechanical properties.
S120、将混合料成型,得到陶瓷制品。S120, shaping the mixture to obtain ceramic products.
在其中一个实施例中,混合料的成型方式为干压成型、注射成型或者流延成型。需要说明的是,混合料成型的方式不限于上述指出的方式,也可以为陶瓷领域中其他成型方式,可以根据需要进行设置。In one of the embodiments, the molding method of the mixture is dry pressing molding, injection molding or casting molding. It should be noted that the molding method of the mixture is not limited to the above-indicated method, and may also be other molding methods in the ceramic field, which can be set as required.
在其中一个实施例中,混合料中,原料的质量份数为65份~81份,消泡剂的质量份数为2份~5份,增塑剂的质量份数为5份~10份,粘结剂的质量份数为7份~10份,有机溶剂的质量份数为5份~10份,粘结剂包括聚甲基丙烯酸甲酯及聚乙烯醇缩丁醛中的至少一种,将混合料成型的步骤中,成型的方式为干压成型。In one of the embodiments, in the mixture, the mass parts of the raw materials are 65 parts to 81 parts, the mass parts of the defoaming agent is 2 parts to 5 parts, and the mass parts of the plasticizer is 5 parts to 10 parts. , The mass parts of the binder is 7-10 parts, the mass parts of the organic solvent is 5-10 parts, and the binder includes at least one of polymethyl methacrylate and polyvinyl butyral , In the step of forming the mixture, the forming method is dry pressing.
进一步地,将混合料干压成型的步骤中,干压压力为180MPa~240MPa,干压温度为40℃~80℃,保压时间为5s~500s。此种设置,能够保证压出的陶瓷坯体具有合适的强度,便于搬运周转,能够避免坯体的强度较低而容易在搬运过程中崩缺或坍塌,并且还能够避免因坯体的内应力过大而在烧结过程中出现内部裂纹。Further, in the step of dry pressing and forming the mixture, the dry pressing pressure is 180 MPa to 240 MPa, the dry pressing temperature is 40° C. to 80° C., and the pressure holding time is 5 s to 500 s. This arrangement can ensure that the extruded ceramic green body has proper strength, is convenient for handling and turnover, can avoid the low strength of the green body and is easy to chip or collapse during handling, and can also avoid the internal stress of the green body. Too large and internal cracks appear during the sintering process.
在其中一个实施例中,混合料中,原料的质量份数为60份~78份,消泡剂的质量份数为2份~5份,增塑剂的质量份数为5份~10份,粘结剂的质量份数为10份~15份,有机溶剂的质量份数为5份~10份,粘结剂包括石蜡及聚丙烯,石蜡及聚丙烯的质量比为6:4~9:1,将混合料成型的步骤包括:将混合料依次进行造粒和注射成型。In one of the embodiments, in the mixture, the mass parts of the raw materials are 60 parts to 78 parts, the mass parts of the defoamer is 2 parts to 5 parts, and the mass parts of the plasticizer is 5 parts to 10 parts. , The mass parts of the binder is 10-15 parts, the mass parts of the organic solvent is 5-10 parts, the binder includes paraffin wax and polypropylene, and the mass ratio of paraffin wax and polypropylene is 6:4-9 :1. The step of forming the mixture includes: granulating and injection molding the mixture in sequence.
其中,将混合料进行造粒的步骤中,造粒的方式为挤出造粒。需要说明的是,造粒的方式不限于为挤出造粒,也可以其他造粒方式,可以根据需要进行设置。更进一步地,造粒形成的颗粒的长度为3cm~5cm。此种设置便于注射成型时向注射机中喂料,保证工作效率,并且能够避免因颗粒较大而卡住喂料口。需要说明的是,造粒形成的颗粒的直径不限制,可以根据需要进行设置,例如造粒形成的颗粒的直径为1mm~10mm。Among them, in the step of granulating the mixture, the method of granulation is extrusion granulation. It should be noted that the method of granulation is not limited to extrusion granulation, and other granulation methods may also be used, which can be set as required. Furthermore, the length of the granules formed by the granulation is 3 cm to 5 cm. This arrangement is convenient for feeding materials into the injection machine during injection molding, ensuring work efficiency, and can avoid blocking the feeding port due to large particles. It should be noted that the diameter of the particles formed by granulation is not limited, and can be set as required, for example, the diameter of the particles formed by granulation is 1 mm-10 mm.
将混合料造粒形成的颗粒进行注射成型的步骤中,注射温度为150℃~180℃,注射压力为75MPa~90MPa。将注射温度设置为150℃~180℃,使得造粒形成的颗粒在成型过程中容易流动,并且使得注射成型后的坯体不易变形。将注射压力设置为75MPa~90MPa,使得易于成型,并且避免形成的坯体开裂。In the step of injection molding the granules formed by granulating the mixture, the injection temperature is 150° C. to 180° C., and the injection pressure is 75 MPa to 90 MPa. The injection temperature is set to 150°C to 180°C, so that the granules formed by granulation can flow easily during the molding process, and the green body after injection molding is not easily deformed. The injection pressure is set to 75 MPa to 90 MPa, which makes it easy to shape and avoids cracking of the formed body.
在其中一个实施例中,混合料中,原料的质量份数为55份~76份,消泡剂的质量份数为2份~5份,增塑剂的质量份数为5份~10份,粘结剂的质量份数为7份~10份,有机溶剂的质量份数为10份~20份,粘结剂包括聚甲基丙烯酸甲酯及聚乙烯醇缩丁醛中的至少一种,将混合料成型的步骤中,成型的方式为流延成型。In one of the embodiments, in the mixture, the mass parts of the raw materials are 55 to 76 parts, the mass parts of the defoamer is 2 parts to 5 parts, and the mass parts of the plasticizer is 5 parts to 10 parts. , The mass parts of the binder is 7-10 parts, the mass parts of the organic solvent is 10-20 parts, and the binder includes at least one of polymethyl methacrylate and polyvinyl butyral , In the step of molding the mixture, the molding method is cast molding.
进一步地,将混合料成型的步骤中,混合料流延成型得到的坯体的厚度为0.7mm~1.1mm。此种设置能够保证陶瓷制品的力学性能,提高陶瓷制品的透过率,以用于电子产品的外壳。更进一步地,将混合料流延成型的步骤中,在流延设备中进行流延成型。刮刀高度为1.2mm~2.3mm,流延带速为0.4m/min~0.8m/min,第一流延干燥区域的温度为70℃~80℃,第二流延干燥区域的温度为80℃~100℃。Further, in the step of forming the mixture, the thickness of the blank obtained by the casting of the mixture is 0.7 mm to 1.1 mm. This arrangement can ensure the mechanical properties of ceramic products and increase the transmittance of ceramic products for use in the housing of electronic products. Furthermore, in the step of casting the mixed material, casting is performed in a casting equipment. The blade height is 1.2mm~2.3mm, the casting belt speed is 0.4m/min~0.8m/min, the temperature of the first casting drying zone is 70℃~80℃, and the temperature of the second casting drying zone is 80℃~ 100°C.
在其中一个实施例中,在S110之后,在S120之前,还包括:对混合料进行球磨的步骤。球磨使得混合料的各组分混合均匀。进一步地,球磨采用的球子的材质为氧化锆。球子的粒径为0.5mm。球磨机球磨腔室的体积为20L。球子占球磨机球磨腔室体积的1/3~1/2。球磨的流量5L/min~10L/min。球磨机的转速为2000转/min~3000转/min。In one of the embodiments, after S110 and before S120, the method further includes the step of ball milling the mixture. Ball milling makes the components of the mixture evenly mixed. Further, the material of the ball used in the ball mill is zirconia. The diameter of the ball is 0.5 mm. The volume of the ball milling chamber of the ball mill is 20L. The ball occupies 1/3 to 1/2 of the volume of the ball mill chamber of the ball mill. The flow rate of the ball mill is 5L/min~10L/min. The rotating speed of the ball mill is 2000 revolutions/min to 3000 revolutions/min.
在其中一个实施例中,将混合料成型的步骤之后,还包括如下步骤:将混合料成型得到的坯体进行排胶烧结。进一步地,排胶温度为300℃~600℃。排胶时间为36h~72h。烧结温度为1300℃~1500℃。烧结时间为36h~72h。此种设置能够提高陶瓷制品的透过率和力学性能。更进一步地,烧结温度为1430℃~1480℃。此种设置能够提高陶瓷制品的透过率,保证陶瓷制品的加工良率和整体强度。需要说明的是,可以将多片采用混合料成型后得到的坯体依次层叠在一起进行排胶烧结。此种设置能够根据需要调节陶瓷制品的厚度。烧结收缩率约为25%。需要说明的是,将混合料成型得到的坯体进行排胶烧结的步骤可以省略,此时,混合料成型得到的坯体能够用于制备具有较高透过率和较优力学性能的陶瓷制品。In one of the embodiments, after the step of forming the mixture, the method further includes the following step: debinding and sintering the green body obtained by forming the mixture. Further, the debinding temperature is 300°C to 600°C. The debinding time is 36h~72h. The sintering temperature is 1300℃~1500℃. The sintering time is 36h~72h. This arrangement can improve the transmittance and mechanical properties of ceramic products. Furthermore, the sintering temperature is 1430°C to 1480°C. This arrangement can increase the transmittance of ceramic products and ensure the processing yield and overall strength of ceramic products. It should be noted that multiple pieces of green bodies obtained after being molded from the mixture can be sequentially stacked together for debinding and sintering. This setting can adjust the thickness of the ceramic product as required. The sintering shrinkage is about 25%. It should be noted that the step of debinding and sintering the green body obtained by molding the mixture can be omitted. At this time, the green body obtained by forming the mixture can be used to prepare ceramic products with higher transmittance and better mechanical properties. .
进一步地,若混合料通过注射成型,将混合料成型得到的坯体进行排胶烧结的步骤之前,还包括如下步骤:将混合料成型得到的坯体进行除蜡处理。更进一步地,将混合料成型得到的坯体进行除蜡处理的步骤包括:将混合料成型得到的坯体浸泡在煤油中,浸泡时间为24h~36h。Furthermore, if the mixture is molded by injection molding, before the step of debinding and sintering the green body obtained by molding the mixture, the method further includes the following step: performing wax removal treatment on the green body obtained by molding the mixture. Furthermore, the step of dewaxing the body obtained by molding the mixture includes: immersing the body obtained by molding the mixture in kerosene for a soaking time of 24h to 36h.
一些研究通过共沉淀方式在氧化锆粉体中掺杂氧化铝,提升其力学特性。然而,由于氧化铝为乳白色,氧化铝的添加导致陶瓷制品的透过率较低,通常厚度为0.45mm的陶瓷制品的透过率为20%左右,严重限制陶瓷制品的使用。一些研究通过改变氧化锆的烧结条件,使得氧化锆发生相变而得到立方氧化锆,以提高其透过率。例如国际上常用的立方氧化锆制备方法:苏联发明的“颅坩埚”法至今仍是主要的合成方法。首先以铜管绕成杯状,铜管内注入冷却水。在杯内加入少量锆金属片,中间加入氧化锆及安定剂粉末,并加以压紧。整个设备以无线电频感应线圈包围。当感应线圈通电时,锆金属因感应产生电流,被加热至高温镕化,并传热至内部的氧化锆将其镕化。冷却水使杯中接近表面1mm~2mm的氧化锆维持固态。经过数小时加热后,逐渐减少热力,无瑕的柱状晶体开始形成。之后在1400℃下长时间(至少10h)退火,消除晶体中的应力。然而,立方氧化锆烧结成本高, 需要1400℃长时间退火(至少10h),对烧结设备及辅材均提出较高要求,并且,立方氧化锆的力学性能较差,尤其体现在四点抗弯和落球特性上,无法满足实际要求。Some researches doped alumina into zirconia powder by co-precipitation method to improve its mechanical properties. However, because alumina is milky white, the addition of alumina results in low permeability of ceramic products. Generally, the permeability of ceramic products with a thickness of 0.45 mm is about 20%, which severely limits the use of ceramic products. Some studies have changed the sintering conditions of zirconia to make the zirconia undergo a phase change to obtain cubic zirconia to increase its transmittance. For example, the commonly used cubic zirconia preparation method in the world: the "cranial crucible" method invented by the Soviet Union is still the main synthesis method. First, a copper tube is wound into a cup shape, and cooling water is poured into the copper tube. Add a small amount of zirconium metal flakes into the cup, add zirconium oxide and stabilizer powder in the middle, and compress them. The entire device is surrounded by a radio frequency induction coil. When the induction coil is energized, the zirconium metal is heated to a high temperature due to the induction of electric current, and the heat is transferred to the zirconium oxide inside to make it. The cooling water keeps the zirconia in the cup near the surface 1mm to 2mm in a solid state. After several hours of heating, the heat is gradually reduced, and flawless columnar crystals begin to form. After that, annealed at 1400°C for a long time (at least 10h) to eliminate stress in the crystal. However, cubic zirconia sintering costs are high, requiring a long time annealing at 1400°C (at least 10h), which puts forward higher requirements on sintering equipment and auxiliary materials, and the mechanical properties of cubic zirconia are poor, especially in the four-point bending resistance In terms of the characteristics of the ball and drop, it cannot meet the actual requirements.
上述实施方式的陶瓷制品的制备方法中,通过将氧化锆、氧化钇、氧化铪及二氧化硅混合得到的混合料进行成型,使得陶瓷制品具有较高的透过率,且具有较强的抗弯强度和落球强度,以用于制作力学性能较好的电子产品的外壳。In the method for preparing ceramic products of the above embodiment, the mixture obtained by mixing zirconium oxide, yttrium oxide, hafnium oxide, and silicon dioxide is molded, so that the ceramic product has a higher transmittance and a stronger resistance The bending strength and falling ball strength are used to make the shell of electronic products with better mechanical properties.
进一步地,上述实施方式的陶瓷制品的制备方法中,通过控制有机溶剂的含量、粘结剂的种类和含量,以使得混合料能够通过不同的方式制成陶瓷制品,操作灵活,适用范围广。Furthermore, in the method for preparing ceramic products of the above embodiment, the content of the organic solvent and the type and content of the binder are controlled so that the mixture can be made into ceramic products in different ways, which is flexible in operation and has a wide application range.
再者,上述实施方式的陶瓷制品的制备方法中,通过将排胶烧结步骤中的烧结温度为1430℃~1480℃,使得能够提高陶瓷制品中立方相的比例,并且通过添加氧化钇,控制氧化钇的含量,降低氧化铝的含量,以提高陶瓷制品的透过率,保证氧化锆陶瓷加工良率及整体强度。Furthermore, in the method for preparing ceramic products of the above embodiment, the sintering temperature in the debinding sintering step is 1430°C to 1480°C, so that the ratio of cubic phase in the ceramic product can be increased, and yttrium oxide is added to control oxidation. The content of yttrium reduces the content of alumina to increase the transmittance of ceramic products and ensure the processing yield and overall strength of zirconia ceramics.
需要说明的是,如果想要调整陶瓷制品的颜色,不仅可以通过调整着色剂的类型,还可以通过在陶瓷制品的表面喷涂颜色层,以使陶瓷制品具有不同的颜色。It should be noted that if you want to adjust the color of a ceramic product, you can not only adjust the type of colorant, but also spray a color layer on the surface of the ceramic product to make the ceramic product have a different color.
如图1所示,一实施方式的电子设备100包括壳体组件110。壳体组件110包括基底(图未示)。基底由上述实施方式的陶瓷制品的制备方法制备得到。进一步地,电子设备100还包括显示组件120和电路板(图未示)。显示组件120与壳体组件110连接。电子设备100正常运行时,显示组件120能够显示图案。显示组件120与壳体组件110之间限定出安装空间(图未示)。电路板控制电路能够控制电子设备100正常运行。电路板设置在安装空间内,且与显示组件120电连接。As shown in FIG. 1, the electronic device 100 of an embodiment includes a housing assembly 110. The housing assembly 110 includes a base (not shown). The substrate is prepared by the preparation method of the ceramic product of the above embodiment. Further, the electronic device 100 further includes a display assembly 120 and a circuit board (not shown). The display assembly 120 is connected to the housing assembly 110. When the electronic device 100 is operating normally, the display component 120 can display a pattern. An installation space (not shown) is defined between the display assembly 120 and the housing assembly 110. The circuit board control circuit can control the normal operation of the electronic device 100. The circuit board is arranged in the installation space and is electrically connected to the display assembly 120.
进一步地,电子设备100为各种能够从外部获取数据并对该数据进行处理的设备,或者,各种内置有电池,并能够从外部获取电流对该电池进行充电的设备。电子设备100例如可以为手机、平板电脑、计算设备或信息显示设备等。在图示实施例中,电子设备100为手机。壳体组件110为手机后盖。显示组件120与基底固接。Further, the electronic device 100 is various devices that can obtain data from the outside and process the data, or various devices that have a built-in battery and can obtain current from the outside to charge the battery. The electronic device 100 may be, for example, a mobile phone, a tablet computer, a computing device, or an information display device. In the illustrated embodiment, the electronic device 100 is a mobile phone. The housing assembly 110 is the back cover of the mobile phone. The display assembly 120 is fixed to the substrate.
上述实施方式的电子设备100包括壳体组件110,壳体组件110包括基底,基底由上述实施方式的陶瓷制品的制备方法制备得到,使得壳体组件110具有较优的力学性能,并且基底为陶瓷材料制成,使得电子设备100具有较好的抗热震性、散热快、耐磨性强等优势,且能够避免对天线信号的屏蔽,使得电子设备100具有较好的信号,能够用于5G设备中;再者,使得电子设备100的壳体组件110更加美观、光滑、温润如玉。The electronic device 100 of the above embodiment includes a housing assembly 110, which includes a base, and the base is prepared by the method for preparing ceramic products of the above embodiment, so that the housing assembly 110 has better mechanical properties, and the base is ceramic Made of materials, the electronic device 100 has the advantages of better thermal shock resistance, fast heat dissipation, strong wear resistance, etc., and can avoid shielding the antenna signal, so that the electronic device 100 has a better signal and can be used for 5G In the device; further, the housing assembly 110 of the electronic device 100 is more beautiful, smooth, and moist as jade.
可以理解,壳体组件110不限于包括基底,请一并参阅图2,在另一实施方式中,电子设备的结构与一实施方式的电子设备100的结构大致相同,不同之处在于,壳体组件210还包括颜色层214。颜色层214位于基底212靠近显示组件的一侧。通过设置不同的颜色层214使得壳体组件210具有不同的颜色。进一步地,颜色层214通过在基底212上喷涂颜色油墨的方式形成。需要说明的是,壳体组件210不限于包括基底212和颜色层214,其他现有的壳体组件中的部件和结构均适用于本申请。It can be understood that the housing assembly 110 is not limited to include a substrate. Please refer to FIG. 2 together. In another embodiment, the structure of the electronic device is substantially the same as the structure of the electronic device 100 of the first embodiment. The difference is that the housing The component 210 also includes a color layer 214. The color layer 214 is located on the side of the substrate 212 close to the display assembly. By providing different color layers 214, the housing assembly 210 has different colors. Further, the color layer 214 is formed by spraying color ink on the substrate 212. It should be noted that the housing assembly 210 is not limited to include the substrate 212 and the color layer 214, and other existing components and structures in the housing assembly are applicable to the present application.
以下实施例,如未特殊说明,则不包括除不可避免的杂质外的其他组分。The following examples, unless otherwise specified, do not include other components except unavoidable impurities.
实施例1~9Examples 1-9
按照表1~3中的参数,制备实施例1~9的陶瓷制品。其中,制备实施例1~9的陶瓷制品的混合料中各组分的质量份数如表1所示;实施例1~9的混合料中原料的各组分的质量份数如表2所示;实施例1~9的陶瓷制品的制备过程的工艺参数如表3所示。According to the parameters in Tables 1 to 3, the ceramic products of Examples 1 to 9 were prepared. Among them, the mass parts of the components in the mixture of the ceramic products of Examples 1-9 are shown in Table 1; the mass parts of the components of the raw materials in the mixture of Examples 1-9 are shown in Table 2. The process parameters of the preparation process of the ceramic products of Examples 1-9 are shown in Table 3.
具体地,陶瓷制品的制备过程如下:Specifically, the preparation process of ceramic products is as follows:
(1)将原料、粘结剂、消泡剂、增塑剂加入有机溶剂中混合,得到混合料。(1) The raw materials, binder, defoamer, and plasticizer are added to an organic solvent and mixed to obtain a mixture.
(2)将混合料球磨均匀后置于模具中干压成型,得到坯体。其中,干压压力为PMPa,干压温度为T1℃,保压时间为t1s,坯体的厚度为hmm。(2) The mixture is uniformly ball-milled and placed in a mold for dry pressing to form a green body. Among them, the dry pressing pressure is PMPa, the dry pressing temperature is T1°C, the holding time is t1s, and the thickness of the blank is hmm.
(3)将坯体置于排胶烧结炉中进行排胶处理,得到陶瓷制品。其中,排胶温度为T2℃,排胶时间为t2h,烧结温度为T3℃,烧结时间为t3h。(3) Placing the green body in a debinding sintering furnace for debinding treatment to obtain ceramic products. Among them, the debinding temperature is T2°C, the debinding time is t2h, the sintering temperature is T3°C, and the sintering time is t3h.
表1 制备实施例1~9的陶瓷制品的混合料中各组分的质量份数Table 1 The mass parts of each component in the mixture of the ceramic products of Preparation Examples 1-9
Figure PCTCN2020102284-appb-000002
Figure PCTCN2020102284-appb-000002
表2 实施例1~9的混合料中原料的各组分的质量份数Table 2 The mass parts of each component of the raw materials in the mixture of Examples 1-9
Figure PCTCN2020102284-appb-000003
Figure PCTCN2020102284-appb-000003
表3 实施例1~9的陶瓷制品的制备过程的工艺参数Table 3 Process parameters of the preparation process of the ceramic products of Examples 1-9
Figure PCTCN2020102284-appb-000004
Figure PCTCN2020102284-appb-000004
实施例10~12Examples 10-12
按照表4~6中的参数,制备实施例10~12的陶瓷制品。其中,制备实施例10~12的陶 瓷制品的混合料中各组分的质量份数如表4所示;实施例10~12的混合料中原料的各组分的质量份数如表5所示;实施例10~12的陶瓷制品的制备过程的工艺参数如表6所示。According to the parameters in Tables 4 to 6, the ceramic products of Examples 10 to 12 were prepared. Among them, the mass parts of the components in the mixture of the ceramic products of Examples 10-12 are shown in Table 4; the mass parts of the components of the raw materials in the mixture of Examples 10-12 are shown in Table 5. The process parameters of the preparation process of the ceramic products of Examples 10-12 are shown in Table 6.
具体地,陶瓷制品的制备过程如下:Specifically, the preparation process of ceramic products is as follows:
(1)将原料、粘结剂、消泡剂、增塑剂加入有机溶剂中混合,得到混合料。(1) The raw materials, binder, defoamer, and plasticizer are added to an organic solvent and mixed to obtain a mixture.
(2)将混合料球磨均匀后在造粒机中挤出球团造粒,得到陶瓷颗粒,陶瓷颗粒的长度为L1cm,陶瓷颗粒的直径为L2mm。(2) After the mixture is uniformly ball-milled, pellets are extruded in a pelletizer to obtain ceramic particles, the length of the ceramic particles is L1cm, and the diameter of the ceramic particles is L2mm.
(3)将陶瓷颗粒置于注射成型机中,向预先加工的模具中注射得到坯体,注射机喷嘴温度为T1℃,注射压力为PMPa,坯体的厚度为hmm;(3) Put the ceramic particles in an injection molding machine, and inject the green body into a pre-processed mold. The nozzle temperature of the injection machine is T1°C, the injection pressure is PMPa, and the green body thickness is hmm;
(4)将坯体置于煤油中浸泡t1h,萃取坯体中的石蜡;再将除蜡后的坯体放置于排胶烧结炉中排胶处理,得到陶瓷制品,其中,预热温度(排胶预热段的温度)为T2℃,预热时间为t2h,排胶温度(即排胶段温度)为T3℃,排胶时间为t3h,烧结温度为T4℃,烧结时间为t4h。(4) The green body is soaked in kerosene for t1h to extract the paraffin in the green body; then the dewaxed green body is placed in a debinding sintering furnace for debinding treatment to obtain ceramic products, where the preheating temperature ( The temperature of the glue preheating section is T2°C, the preheating time is t2h, the debinding temperature (ie, the temperature of the debinding section) is T3°C, the debinding time is t3h, the sintering temperature is T4°C, and the sintering time is t4h.
表4 制备实施例10~12的陶瓷制品的混合料中各组分的质量份数Table 4 The mass parts of each component in the mixture of the ceramic products of Preparation Examples 10-12
Figure PCTCN2020102284-appb-000005
Figure PCTCN2020102284-appb-000005
表5 实施例10~12的混合料中原料的各组分的质量份数Table 5 The mass parts of each component of the raw materials in the mixture of Examples 10-12
Figure PCTCN2020102284-appb-000006
Figure PCTCN2020102284-appb-000006
表6 实施例10~12的陶瓷制品的制备过程的工艺参数Table 6 Process parameters of the preparation process of the ceramic products of Examples 10-12
 To 实施例10Example 10 实施例11Example 11 实施例12Example 12
L1(cm)L1(cm) 33 55 44
L2(mm)L2(mm) 11 1010 55
T1(℃)T1(℃) 150150 180180 165165
P(MPa)P(MPa) 7575 9090 8383
h(mm)h(mm) 0.450.45 0.450.45 0.450.45
t1(h)t1(h) 24twenty four 3636 3030
T2(℃)T2(℃) 5050 7070 6060
t2(h)t2(h) 1010 1414 1212
T3(℃)T3(℃) 300300 600600 450450
t3(h)t3(h) 3636 7272 4848
T4(℃)T4(℃) 13001300 15001500 14501450
t4(h)t4(h) 3636 7272 4848
实施例13~15Examples 13-15
按照表7~9中的参数,制备实施例13~15的陶瓷制品。其中,制备实施例13~15的陶瓷制品的混合料中各组分的质量份数如表7所示;实施例13~15的混合料中原料的各组分的质量份数如表8所示;实施例13~15的陶瓷制品的制备过程的工艺参数如表9所示。According to the parameters in Tables 7-9, the ceramic products of Examples 13-15 were prepared. Among them, the mass parts of the components in the mixture of the ceramic products of Examples 13-15 are shown in Table 7; the mass parts of the components of the raw materials in the mixture of Examples 13-15 are shown in Table 8. The process parameters of the preparation process of the ceramic products of Examples 13-15 are shown in Table 9.
具体地,陶瓷制品的制备过程如下:Specifically, the preparation process of ceramic products is as follows:
(1)将原料、粘结剂、消泡剂、增塑剂加入有机溶剂中混合,得到混合料。(1) The raw materials, binder, defoamer, and plasticizer are added to an organic solvent and mixed to obtain a mixture.
(2)将混合料球磨均匀后置于流延成型设备中进行流延成型,得到坯体,其中,刮刀高度为h1mm,流延带速为Vm/min,第一流延干燥区域的温度为T1℃,第二流延干燥区域的温度为T2℃,坯体的厚度为h2mm。(2) Ball mill the mixture evenly and place it in a casting equipment for casting to obtain a green body. The blade height is h1mm, the casting belt speed is Vm/min, and the temperature of the first casting drying zone is T1. ℃, the temperature of the second casting drying zone is T2℃, and the thickness of the blank is h2mm.
(3)将坯体冲切成设定尺寸,放入排胶烧结炉中进行排胶处理,得到陶瓷制品,其中,排胶温度(即排胶段温度)为T3℃,排胶时间为t3h,烧结温度为T4℃,烧结时间为t4h。(3) The blank is punched into a set size and placed in a debinding sintering furnace for debinding treatment to obtain ceramic products, where the debinding temperature (ie the temperature of the debinding section) is T3°C, and the debinding time is t3h , The sintering temperature is T4℃, and the sintering time is t4h.
表7 制备实施例13~15的陶瓷制品的混合料中各组分的质量份数Table 7 The mass parts of each component in the mixture of the ceramic products of Preparation Examples 13-15
Figure PCTCN2020102284-appb-000007
Figure PCTCN2020102284-appb-000007
表8 实施例13~15的混合料中原料的各组分的质量份数Table 8 The mass parts of each component of the raw materials in the mixture of Examples 13-15
Figure PCTCN2020102284-appb-000008
Figure PCTCN2020102284-appb-000008
表9 实施例13~15的陶瓷制品的制备过程的工艺参数Table 9 Process parameters of the preparation process of the ceramic products of Examples 13-15
 To 实施例13Example 13 实施例14Example 14 实施例15Example 15
h1(mm)h1(mm) 1.21.2 2.32.3 1.81.8
V(m/min)V(m/min) 0.40.4 0.80.8 0.60.6
T1(℃)T1(℃) 7070 8080 7575
T2(℃)T2(℃) 8080 100100 9090
h2(mm)h2(mm) 0.70.7 1.11.1 0.90.9
T3(℃)T3(℃) 300300 600600 450450
t3(h)t3(h) 3636 7272 4848
T4(℃)T4(℃) 13001300 15001500 14501450
t4(h)t4(h) 3636 7272 4848
测试:test:
测定实施例1~15的陶瓷制品的密度、透过率、OD(optical density,光密度)值、抗弯强度、硬度和落球强度。测定结果详见表10。表10表示的是实施例1~15的陶瓷制品的密度、透过率、OD值、抗弯强度、硬度和落球强度。The density, transmittance, OD (optical density, optical density) value, bending strength, hardness, and falling ball strength of the ceramic products of Examples 1-15 were measured. The measurement results are shown in Table 10. Table 10 shows the density, transmittance, OD value, flexural strength, hardness, and falling ball strength of the ceramic products of Examples 1-15.
其中,密度的测定:在制作陶瓷制品的过程中,将多片采用混合料成型后得到的坯体依次层叠在一起进行排胶烧结,得到陶瓷制品,烧结收缩率约为25%;通过测定陶瓷制品的质量和体积,并用质量除以体积则得到密度;采用分析天平(上海新苗公司,型号为DHG-9033BS-III)测定质量;采用皮秒激光切割器(大族激光公司,型号为DSI9486)将陶瓷制品切割成长度、宽度和厚度均为10mm的正方体,以得到体积为10 3mm 3的正方体; Among them, the density measurement: in the process of making ceramic products, multiple pieces of green bodies obtained after molding with the mixture are sequentially stacked together for debinding and sintering to obtain ceramic products with a sintering shrinkage rate of about 25%; by measuring ceramics The mass and volume of the product, and the mass divided by the volume to get the density; use an analytical balance (Shanghai Xinmiao Company, model DHG-9033BS-III) to determine the quality; use a picosecond laser cutter (Han's Laser Company, model DSI9486) Cut the ceramic product into a cube with a length, width and thickness of 10 mm to obtain a cube with a volume of 103 mm 3 ;
抗弯强度测定:采用万能材料试验机(东莞威邦仪器设备有限公司,型号为WBE-9909B)并按照“GBT 6569-2006精细陶瓷弯曲强度试验方法”进行四点弯曲试验以得到抗弯强度;Bending strength determination: Use a universal material testing machine (Dongguan Weibang Instrument Equipment Co., Ltd., model WBE-9909B) and perform a four-point bending test in accordance with "GBT 6569-2006 Fine Ceramic Bending Strength Test Method" to obtain the bending strength;
硬度的测定:采用维氏硬度计(烟台华银试验仪器有限公司,型号为HV-5)按照“GB T4340.1-2009金属维氏硬度试验”测定陶瓷制品的维氏硬度;Hardness measurement: Vickers hardness tester (Yantai Huayin Testing Instrument Co., Ltd., model HV-5) is used to determine the Vickers hardness of ceramic products according to "GB T4340.1-2009 Metal Vickers Hardness Test";
落球强度测定:采用落球冲击试验机(永雄公司,型号为AS-DB-200)进行落球强度测定,具体测定过程为:用32g不锈钢球按照一定高度自由落体砸向陶瓷制品,陶瓷中间腾空,四周用仿形治具支撑,同一高度连续砸5次,如果不碎裂,将落球高度提高5cm重复上述步骤,直至陶瓷制品破裂,并记录致使陶瓷制品破裂的高度,此高度越高,陶瓷制品的落球强度越高。Falling ball strength measurement: The falling ball impact tester (Yongxiong Company, model AS-DB-200) is used to determine the falling ball strength. The specific measurement process is: a 32g stainless steel ball is used to freely fall at a certain height to the ceramic product, and the center of the ceramic is empty. Use a profiling jig to support and hit the same height for 5 times. If it does not break, increase the height of the ball by 5cm and repeat the above steps until the ceramic product is broken, and record the height of the ceramic product. The higher the height, the higher the The higher the falling ball intensity.
OD值:采用OD值测量仪(苏州英莳特仪器科技有限公司,型号为LS117)陶瓷制品的OD值;OD value: the OD value of ceramic products using an OD value measuring instrument (Suzhou Insite Instrument Technology Co., Ltd., model LS117);
透过率:采用近红外-紫外可光分光光度计(购于海斯迈欧分析仪器有限公司,型号为岛津UV3600)设备测定陶瓷制品在波长为550nm下的透过率。Transmittance: A near-infrared-ultraviolet spectrophotometer (purchased from Hesimiao Analytical Instruments Co., Ltd., model Shimadzu UV3600) is used to determine the transmittance of ceramic products at a wavelength of 550nm.
表10Table 10
Figure PCTCN2020102284-appb-000009
Figure PCTCN2020102284-appb-000009
Figure PCTCN2020102284-appb-000010
Figure PCTCN2020102284-appb-000010
从表10可以看出,OD值和透过率均反映材料对光的通透程度,该OD值和透过率受厚度和材料配比影响较大,同种材料配比情况下,厚度越厚透过率越低,OD值越高。实施例1~6、实施例10~15的陶瓷制品的透过率为41.58%~45.24%,OD值为0.344~0.368,说明上述实施方式的陶瓷制品具有较高的透过率,通透性较好;并且,混合料的原料中氧化钇的含量越高,得到的陶瓷制品的透过率越高,OD值越低,陶瓷制品越通透;并且,当二氧化硅与氧化铝的质量比为2:1~2.5:1时,氧化钇能够使得陶瓷粉体粒子半径减小,能够抑制陶瓷粉体粒子的长大趋势,但是能够加剧陶瓷粉体粒子的团聚,且团聚强度较好,陶瓷粉体的晶粒尺寸增大,晶界减少,以降低对光线的折射和吸收,而提高透过率;并且氧化钇能够使陶瓷粉体的相组成成分从单斜相和四方相转变为四方相,再转变为四方相与立方相的混合,而立方相的透过率较高,以增加陶瓷制品的透过率。其中,实施例6的陶瓷制品的透过率高于实施例8的陶瓷制品的透过率,说明二氧化硅与氧化铝的配合能够促使氧化钇发挥作用以提高陶瓷制品的透过。It can be seen from Table 10 that both the OD value and transmittance reflect the degree of light transmission of the material. The OD value and transmittance are greatly affected by the thickness and material ratio. In the case of the same material ratio, the thickness The lower the thick transmittance, the higher the OD value. The transmittance of the ceramic products of Examples 1 to 6 and Examples 10 to 15 is 41.58% to 45.24%, and the OD value is 0.344 to 0.368, indicating that the ceramic products of the above embodiments have higher transmittance and permeability Better; and, the higher the content of yttrium oxide in the raw material of the mixture, the higher the permeability of the ceramic products obtained, the lower the OD value, the more transparent the ceramic products; and when the quality of silica and alumina When the ratio is 2:1 to 2.5:1, yttrium oxide can reduce the radius of ceramic powder particles, which can inhibit the growth of ceramic powder particles, but can aggravate the agglomeration of ceramic powder particles, and the agglomeration strength is better. The grain size of the ceramic powder increases and the grain boundary decreases to reduce the refraction and absorption of light and increase the transmittance; and yttrium oxide can transform the phase composition of the ceramic powder from monoclinic phase and tetragonal phase to The tetragonal phase is then transformed into a mixture of tetragonal and cubic phases, and the cubic phase has a higher transmittance to increase the transmittance of ceramic products. Among them, the transmittance of the ceramic product of Example 6 is higher than that of the ceramic product of Example 8, indicating that the combination of silica and alumina can promote yttrium oxide to play a role to improve the transmittance of the ceramic product.
实施例1~6、实施例10~15的陶瓷制品的密度为6.20g/cm -2~6.45g/cm -2,说明上述实施方式的陶瓷制品具有较为合适的密度。其中,实施例1~2和实施例6的陶瓷制品的密度优于实施例10~12的陶瓷制品的密度,说明在陶瓷制品的原料的配方相同的情况下干压成型比注射成型更有利提高陶瓷制品的密度,并且干压成型中,干压压力越大,得到的陶瓷制品的密度越大;实施例10~12的陶瓷制品的密度分别优于实施例13~15的陶瓷制品的密度,说明在陶瓷制品的原料的配方相同的情况下注射成型比流延成型更有利于提高陶瓷制品的密度,并且注射成型中,注射压力越大,得到的陶瓷制品的密度越大;而流延成型中烧结温度对陶瓷制品的密度影响较大,烧结温度为1450℃更有利于提高陶瓷制品的密度。 The densities of the ceramic products of Examples 1 to 6 and Examples 10 to 15 are 6.20 g/cm -2 to 6.45 g/cm -2 , indicating that the ceramic products of the above embodiments have a relatively suitable density. Among them, the density of the ceramic products of Examples 1 to 2 and Example 6 is better than the density of the ceramic products of Examples 10 to 12, indicating that dry pressing molding is more beneficial than injection molding when the formulation of the raw materials of the ceramic products is the same. The density of ceramic products, and in dry pressing, the higher the dry pressing pressure, the greater the density of the ceramic products obtained; the density of the ceramic products of Examples 10-12 is better than the density of the ceramic products of Examples 13-15, respectively. It shows that injection molding is more conducive to increasing the density of ceramic products than cast molding when the raw material formulations of ceramic products are the same. In injection molding, the higher the injection pressure, the greater the density of the ceramic products obtained; while the cast molding The middle sintering temperature has a great influence on the density of ceramic products, and the sintering temperature of 1450℃ is more conducive to increasing the density of ceramic products.
实施例1~6、实施例10~15的陶瓷制品的抗弯强度为1130MPa~1450MPa,说明上述实施方式的陶瓷制品具有较强的抗弯强度。其中,实施例1~2和实施例6的陶瓷制品的抗弯强度分别优于实施例13~15的陶瓷制品的抗弯强度,说明在陶瓷制品的原料的配方相同的情况下干压成型比流延成型更有利提高陶瓷制品的抗弯强度。实施例13~15的陶瓷制品的抗弯强度分别优于实施例10~12的陶瓷制品的抗弯强度,说明在陶瓷制品的原料的配方相同的情况下流延成型比注射成型更有利于提高陶瓷制品的抗弯强度。并且,同种成型方式中氧化锆和氧化铝的含量总和越高,陶瓷制品的抗弯强度越高。The flexural strengths of the ceramic products of Examples 1 to 6 and Examples 10 to 15 are 1130 MPa to 1450 MPa, indicating that the ceramic products of the above-mentioned embodiments have strong flexural strength. Among them, the flexural strength of the ceramic products of Examples 1 to 2 and Example 6 is better than the flexural strength of the ceramic products of Examples 13 to 15, respectively, indicating that the dry pressing ratio of the ceramic products is the same when the raw material formulations of the ceramic products are the same. Casting is more beneficial to improve the bending strength of ceramic products. The flexural strength of the ceramic products of Examples 13-15 is better than the flexural strength of the ceramic products of Examples 10-12, indicating that the casting molding is more conducive to improving the ceramics than the injection molding when the ceramic products have the same raw material formulations. The bending strength of the product. Moreover, the higher the total content of zirconia and alumina in the same molding method, the higher the bending strength of the ceramic product.
实施例1~6、实施例10~15的陶瓷制品的硬度为1210HV~1450HV,说明上述实施方式的陶瓷制品具有较强的硬度。其中,实施例1~2和实施例6的陶瓷制品的硬度分别优于实施例10~12的陶瓷制品的硬度,说明在陶瓷制品的原料的配方相同的情况下干压成型比注射成型更有利提高陶瓷制品的硬度。实施例10~12的陶瓷制品的硬度分别优于实施例13~15的陶瓷制品的硬度,说明在陶瓷制品的原料的配方相同的情况下注射成型比流延成型更有利于提高陶瓷制品的硬度。并且,同种成型方式中氧化铝的含量总和越高,陶瓷制品的硬度越高。需要说明的是,硬度有多种因素决定的。不同的陶瓷制品的原料的配方、不同的成型方式得到的陶瓷制品的硬度不同。The hardness of the ceramic products of Examples 1 to 6 and Examples 10 to 15 is 1210HV to 1450HV, indicating that the ceramic products of the above-mentioned embodiment have relatively strong hardness. Among them, the hardness of the ceramic products of Examples 1 to 2 and Example 6 are better than those of the ceramic products of Examples 10 to 12, respectively, indicating that dry pressing molding is more advantageous than injection molding when the formulation of the raw materials of the ceramic products is the same. Improve the hardness of ceramic products. The hardness of the ceramic products of Examples 10-12 is better than the hardness of the ceramic products of Examples 13-15, respectively, indicating that injection molding is more conducive to improving the hardness of ceramic products than casting when the formulation of the ceramic products is the same. . Moreover, the higher the total alumina content in the same molding method, the higher the hardness of the ceramic product. It should be noted that hardness is determined by many factors. Different ceramic products have different raw material formulations and different molding methods to obtain different hardness of ceramic products.
进一步地,实施例6的陶瓷制品的抗弯强度和硬度均优于实施例9的陶瓷制品,说明氧化铝的添加能够提高陶瓷制品的力学性能;然而,由于氧化铝为乳白色,不利于陶瓷制品的透过率,而实施例6的陶瓷制品的透过率与实施例9的陶瓷制品的透过率相当,说明上述实施方式通过优于陶瓷制品的原料的配比使得能够得到兼具较优透过率和较优力学性能的陶瓷制品。Furthermore, the flexural strength and hardness of the ceramic product of Example 6 are better than those of the ceramic product of Example 9, indicating that the addition of alumina can improve the mechanical properties of the ceramic product; however, because alumina is milky white, it is not conducive to ceramic products The transmittance of the ceramic product of Example 6 and the transmittance of the ceramic product of Example 9 are equivalent, indicating that the above-mentioned embodiment can achieve a better combination of raw materials than the ceramic product. Ceramic products with transmittance and better mechanical properties.
实施例1~6、实施例10~15的陶瓷制品的落球强度为64.3cm~78.1cm,说明上述实施方式的陶瓷制品具有落球强度。其中,实施例3~4的陶瓷制品的落球强度优于实施例1~2的陶瓷制品的落球强度,说明氧化锆和氧化钇的质量比为20:1~22:1,更有利于提高陶瓷制品的力学性能,并且说明氧化钇含量过高会降低陶瓷制品的落球强度。实施例1~2和实施例6的陶瓷制品的落球强度分别优于实施例10~12的陶瓷制品的落球强度,说明在陶瓷制品的原料的配方相同的情况下干压成型比注射成型更有利提高陶瓷制品的落球强度;并且干压成型中,干压压力越大,陶瓷制品的落球强度越高。实施例10~12的陶瓷制品的落球强度分别优于实施例13~15的陶瓷制品的落球强度,说明在陶瓷制品的原料的配方相同的情况下注射成型比流延成型更有利于提高陶瓷制品的落球强度;并且注射成型中,注射压力越高,得到陶瓷制品的落球强度越高。The falling ball strength of the ceramic products of Examples 1 to 6 and Examples 10 to 15 is 64.3 cm to 78.1 cm, which indicates that the ceramic products of the above-mentioned embodiment have falling ball strength. Among them, the falling ball strength of the ceramic products of Examples 3 to 4 is better than that of the ceramic products of Examples 1 to 2, indicating that the mass ratio of zirconia and yttrium oxide is 20:1-22:1, which is more conducive to improving ceramics. The mechanical properties of the product, and that too high yttrium oxide content will reduce the falling ball strength of ceramic products. The falling ball strength of the ceramic products of Examples 1 to 2 and Example 6 is better than that of the ceramic products of Examples 10 to 12, respectively, indicating that dry press molding is more advantageous than injection molding when the ceramic products have the same formulation of raw materials Improve the falling ball strength of ceramic products; and in dry pressing, the greater the dry pressure, the higher the falling ball strength of ceramic products. The falling ball strength of the ceramic products of Examples 10-12 is better than the falling ball strength of the ceramic products of Examples 13-15, indicating that injection molding is more conducive to improving ceramic products than cast molding when the formulation of the ceramic products is the same. In injection molding, the higher the injection pressure, the higher the falling ball strength of ceramic products.
综上所述,上述实施方式的陶瓷制品的原料配比合理,得到陶瓷制品具有较高的透过率较高,并且兼具较优的力学性能,能够用于制备电子产品的外壳。In summary, the ceramic products of the above embodiments have a reasonable raw material ratio, and the ceramic products obtained have higher transmittance and better mechanical properties, and can be used to prepare the housing of electronic products.
以上所述实施例的各技术特征可以进行任意的组合,为使描述简洁,未对上述实施例中的各个技术特征所有可能的组合都进行描述,然而,只要这些技术特征的组合不存在矛盾,都应当认为是本说明书记载的范围。The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, All should be considered as the scope of this specification.
以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several embodiments of the present invention, and the descriptions are more specific and detailed, but they should not be understood as limiting the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims (20)

  1. 一种陶瓷制品,以质量份数计,制备所述陶瓷制品的原料包括:A ceramic product, in parts by mass, the raw materials for preparing the ceramic product include:
    Figure PCTCN2020102284-appb-100001
    Figure PCTCN2020102284-appb-100001
  2. 根据权利要求1所述的陶瓷制品,其特征在于,所述氧化锆与所述氧化钇的质量比为20:1~22:1。The ceramic product of claim 1, wherein the mass ratio of the zirconium oxide to the yttrium oxide is 20:1-22:1.
  3. 根据权利要求1所述的陶瓷制品,其特征在于,所述二氧化硅与所述氧化铝的质量比为2:1~2.5:1。The ceramic product of claim 1, wherein the mass ratio of the silica to the alumina is 2:1 to 2.5:1.
  4. 一种陶瓷制品的制备方法,包括如下步骤:A method for preparing ceramic products includes the following steps:
    将原料混合,得到混合料,其中,所述原料以质量份数计包括85份~95份的氧化锆、2份~5份的氧化钇、1份~2.5份的氧化铪、0.2份~1份的二氧化硅、0.1份~0.5份的氧化铝、0.1份~0.5份的氧化锌、0.001份~0.1份的三氧化二铁、0.01份~0.1份的氧化镍及0.01份~0.5份的氧化钛;及The raw materials are mixed to obtain a mixture, wherein the raw materials include 85 parts to 95 parts of zirconia, 2 parts to 5 parts of yttrium oxide, 1 part to 2.5 parts of hafnium oxide, 0.2 parts to 1 part by mass. Parts of silica, 0.1 parts to 0.5 parts of alumina, 0.1 parts to 0.5 parts of zinc oxide, 0.001 parts to 0.1 parts of ferric oxide, 0.01 parts to 0.1 parts of nickel oxide, and 0.01 parts to 0.5 parts of Titanium oxide; and
    将所述混合料成型,得到陶瓷制品。The mixture is shaped to obtain ceramic products.
  5. 根据权利要求4所述的陶瓷制品的制备方法,其特征在于,所述将原料混合,得到混合料的步骤之后,将所述混合料成型的步骤之前,还包括对所述混合料进行球磨的步骤。The method for preparing ceramic products according to claim 4, characterized in that, after the step of mixing the raw materials to obtain the mixture, and before the step of forming the mixture, the method further comprises ball milling the mixture step.
  6. 根据权利要求4所述的陶瓷制品的制备方法,其特征在于,所述将原料混合,得到混合料的步骤包括:将所述原料、消泡剂、增塑剂、粘结剂和有机溶剂混合,得到所述混合料。The method for preparing ceramic products according to claim 4, wherein the step of mixing the raw materials to obtain a mixture comprises: mixing the raw materials, a defoamer, a plasticizer, a binder, and an organic solvent , To obtain the mixture.
  7. 根据权利要求6所述的陶瓷制品的制备方法,其特征在于,所述混合料中,所述原料的质量份数为65份~81份,所述消泡剂的质量份数为2份~5份,所述增塑剂的质量份数为5份~10份,所述粘结剂的质量份数为7份~10份,所述有机溶剂的质量份数为5份~10份,所述粘结剂包括聚甲基丙烯酸甲酯及聚乙烯醇缩丁醛中的至少一种,所述将所述混合料成型的步骤中,成型的方式为干压成型。The method for preparing ceramic products according to claim 6, characterized in that, in the mixture, the mass parts of the raw materials are 65 parts to 81 parts, and the mass parts of the defoamer is 2 parts to 81 parts. 5 parts, the mass parts of the plasticizer is 5 parts to 10 parts, the mass parts of the binder is 7 parts to 10 parts, the mass parts of the organic solvent is 5 parts to 10 parts, The binder includes at least one of polymethyl methacrylate and polyvinyl butyral, and in the step of molding the mixture, the molding method is dry pressing.
  8. 根据权利要求7所述的陶瓷制品的制备方法,其特征在于,所述将所述混合料成型的步骤中,干压压力为180MPa~240MPa,干压温度为40℃~80℃,保压时间为5s~500s。The method for preparing ceramic products according to claim 7, characterized in that, in the step of forming the mixture, the dry pressing pressure is 180MPa~240MPa, the dry pressing temperature is 40℃~80℃, and the pressure holding time It is 5s~500s.
  9. 根据权利要求6所述的陶瓷制品的制备方法,其特征在于,所述混合料中,所述原料的质量份数为60份~78份,所述消泡剂的质量份数为2份~5份,所述增塑剂的质量份数为5份~10份,所述粘结剂的质量份数为10份~15份,所述有机溶剂的质量份数为5份~10份,所述粘结剂包括石蜡及聚丙烯,所述石蜡及所述聚丙烯的质量比为6:4~9:1,所述将所述混合料成型的步骤包括:将所述混合料依次进行造粒和注射成型。The method for preparing ceramic products according to claim 6, characterized in that, in the mixture, the mass parts of the raw materials are 60 parts to 78 parts, and the mass parts of the defoamer is 2 parts to 78 parts. 5 parts, the mass parts of the plasticizer is 5 parts to 10 parts, the mass parts of the binder is 10 parts to 15 parts, the mass parts of the organic solvent is 5 parts to 10 parts, The binder includes paraffin wax and polypropylene, the mass ratio of the paraffin wax and the polypropylene is 6:4-9:1, and the step of forming the mixture includes: sequentially performing the mixture Granulation and injection molding.
  10. 根据权利要求9所述的陶瓷制品的制备方法,其特征在于,将所述混合料进行造粒的步骤中,造粒形成的颗粒的长度为3cm~5cm;The method for preparing ceramic products according to claim 9, characterized in that, in the step of granulating the mixture, the length of the granules formed by the granulation is 3 cm to 5 cm;
    及/或,将所述混合料造粒形成的颗粒进行注射成型的步骤中,注射温度为150℃~180℃,注射压力为75MPa~90MPa。And/or, in the step of injection molding the particles formed by granulating the mixture, the injection temperature is 150° C. to 180° C., and the injection pressure is 75 MPa to 90 MPa.
  11. 根据权利要求6所述的陶瓷制品的制备方法,其特征在于,所述混合料中,所述原料的质量份数为55份~76份,所述消泡剂的质量份数为2份~5份,所述增塑剂的质量 份数为5份~10份,所述粘结剂的质量份数为7份~10份,所述有机溶剂的质量份数为10份~20份,所述粘结剂包括聚甲基丙烯酸甲酯及聚乙烯醇缩丁醛中的至少一种,所述将所述混合料成型的步骤中,成型的方式为流延成型。The method for preparing ceramic products according to claim 6, wherein in the mixture, the mass parts of the raw materials are 55 to 76 parts, and the mass parts of the defoaming agent is 2 parts to 76 parts. 5 parts, the mass parts of the plasticizer is 5 parts to 10 parts, the mass parts of the binder is 7 parts to 10 parts, the mass parts of the organic solvent is 10 parts to 20 parts, The binder includes at least one of polymethyl methacrylate and polyvinyl butyral, and in the step of molding the mixture, the molding method is casting molding.
  12. 根据权利要求4~11任一项所述的陶瓷制品的制备方法,其特征在于,所述将所述混合料成型的步骤之后,还包括如下步骤:将所述混合料成型得到的坯体进行排胶烧结。The method for preparing ceramic products according to any one of claims 4 to 11, characterized in that, after the step of forming the mixture, it further comprises the following step: forming the green body obtained by forming the mixture Debinding and sintering.
  13. 根据权利要求12所述的陶瓷制品的制备方法,其特征在于,将所述混合料成型得到的坯体进行排胶烧结的步骤中,排胶温度为300℃~600℃,排胶时间为36h~72h,烧结温度为1300℃~1500℃,烧结时间为36h~72h。The method for preparing ceramic products according to claim 12, wherein in the step of debinding and sintering the green body obtained by molding the mixture, the debinding temperature is 300°C to 600°C, and the debinding time is 36h ~72h, sintering temperature is 1300℃~1500℃, sintering time is 36h~72h.
  14. 一种陶瓷制品,由权利要求4~13任一项所述的陶瓷制品的制备方法制备得到。A ceramic product prepared by the method for preparing a ceramic product according to any one of claims 4-13.
  15. 一种电子设备,包括:An electronic device including:
    壳体组件,包括基底,所述基底由权利要求4~13任一项所述的陶瓷制品的制备方法制备得到;The housing assembly includes a base, which is prepared by the method for preparing a ceramic product according to any one of claims 4 to 13;
    显示组件,与所述壳体组件连接,所述显示组件和所述壳体组件之间限定出安装空间;及A display assembly connected to the housing assembly, and an installation space is defined between the display assembly and the housing assembly; and
    电路板,设置在所述安装空间内且与所述显示组件电连接。The circuit board is arranged in the installation space and is electrically connected to the display assembly.
  16. 一种电子设备,包括:An electronic device including:
    壳体组件,包括权利要求1-3任一项所述的陶瓷制品,所述壳体组件形成安装空间;A housing assembly, comprising the ceramic product of any one of claims 1-3, the housing assembly forming an installation space;
    显示组件,连接于所述壳体组件;及A display assembly connected to the housing assembly; and
    电路板,设于所述安装空间并与所述显示组件电连接。The circuit board is arranged in the installation space and electrically connected with the display assembly.
  17. 根据权利要求16所述的电子设备,其特征在于,所述电子设备包括电池,所述电池设置于所述安装空间并能够为所述电路板和所述显示组件供电。The electronic device according to claim 16, wherein the electronic device comprises a battery, and the battery is disposed in the installation space and capable of supplying power to the circuit board and the display assembly.
  18. 根据权利要求17所述的电子设备,其特征在于,所述壳体组件包括覆盖所述电池的后盖,所述显示组件与所述后盖相对设置,所述后盖包括所述陶瓷制品。The electronic device according to claim 17, wherein the housing assembly comprises a back cover covering the battery, the display assembly is arranged opposite to the back cover, and the back cover comprises the ceramic product.
  19. 根据权利要求18所述的电子设备,其特征在于,所述后盖包括颜色层,所述颜色层设置于所述后盖的表面。The electronic device according to claim 18, wherein the back cover comprises a color layer, and the color layer is disposed on a surface of the back cover.
  20. 根据权利要求19所述的电子设备,其特征在于,所述颜色层的材质为油墨。19. The electronic device of claim 19, wherein the color layer is made of ink.
PCT/CN2020/102284 2019-08-16 2020-07-16 Ceramic article, preparation method therefor, and electronic device WO2021031752A1 (en)

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