CN106747354A - A kind of ceramic composite preparation for processing - Google Patents

A kind of ceramic composite preparation for processing Download PDF

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CN106747354A
CN106747354A CN201611155900.9A CN201611155900A CN106747354A CN 106747354 A CN106747354 A CN 106747354A CN 201611155900 A CN201611155900 A CN 201611155900A CN 106747354 A CN106747354 A CN 106747354A
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ceramic
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苏晓玲
农韦健
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    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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Abstract

The invention discloses a kind of ceramic composite preparation for processing, the ceramics are admired the oxide of the strontium of ore deposit structure containing aluminum oxide and with calcium, and the oxide of strontium contains SraAbOcAnd SrXEYOz, wherein, A is tantalum or niobium, and E is the one kind in cobalt, iron and manganese, and a values are that 1.5 2.5, b values are that 1.5 2.5, c values are that 6.5 7.5, X values are 0.9 1.1, and Y value is that 0.9 1.1, Z values are 2.7 3.3；The ceramics toughness is 6 8MPa.m1/2, drop resistant number of times is 10 15 times；The ceramic red value of green is 0.06 0.07, and blue yellow value is 0.032 0.02, and ceramic surface intensity of reflected light L is 43 44；The toughening effect of fiber is not decayed while ceramic material of the present invention is densified, improve the density and compressive strength of material, dielectric constant and dielectric loss angle tangent are substantially unchanged, tensile strength and bending strength influence during low-temperature treatment on material is little, relative to standard ceramic sample, with blackness higher.

Description

A kind of ceramic composite preparation for processing
Technical field
The present invention relates to ceramic preparation, specifically a kind of ceramic composite preparation for processing.
Background technology
The characteristics of aluminium oxide ceramics is due to conventional ceramic good corrosion resistance, therefore have extensive answering in terms of structural member With, and it has the advantages that density small (wrong compared to oxidation) and sintering shrinkage amplitude are small, therefore in terms of cost solution There is huge advantage.But due to its poor toughness (only 2-3MPa.m1/2), therefore when large area appearance member is made, have intolerant to The shortcoming fallen, and its inherent color is white, it is too single, therefore to apply on appearance member, just must be while full The requirement of sufficient blackness and drop resistant.
In existing toughening technology, the most frequently used is exactly the scheme of the wrong toughened aluminum oxide of oxidation, is added by alumina substrate The substantial amounts of oxidation mistake with high tenacity lifts its toughness, its toughness is can reach 5-6MPa.m1/2Between.
In existing black-emitting technology, the most frequently used is exactly to add some oxides, such as manganese dioxide or oxygen in the base Change and bore etc., but these oxides begin to greatly volatilize in 1000 degrees centigrades, and when sintering temperature, to reach 1400 Celsius When spending, oneself becomes brown for the color of sample, therefore, the practicality that ceramics are obtained is too low.
Therefore, be badly in need of now it is a kind of can be while improving the preparation method of aluminium oxide ceramics toughness and blackness.
The content of the invention
It is an object of the invention to provide a kind of ceramic composite preparation for processing, with solving above-mentioned background technology The problem of proposition.
To achieve the above object, the present invention provides following technical scheme：
A kind of ceramic composite preparation for processing, the ceramics are admired the oxidation of the strontium of ore deposit structure containing aluminum oxide and with calcium Thing, the oxide of strontium contains SraAbOcAnd SrXEYOz, wherein, A is tantalum or niobium, and E is the one kind in cobalt, iron and manganese, and a values are 1.5- 2.5, b values are 1.5-2.5, and c values are 6.5-7.5, and X values are 0.9-1.1, and Y value is 0.9-1.1, and Z values are 2.7-3.3；The ceramics Toughness is 6-8MPa.m1/2, drop resistant number of times is 10-15 times；The ceramic red value of green is 0.06-0.07, and blue yellow value is 0.032- 0.02, ceramic surface intensity of reflected light L are 43-44；
The ceramic preparation is comprised the following steps：
1）By containing matrix material, additive, toughener, the ceramic raw material of black dye and sintering aid in organic solvent It is well mixed, it is subsequently adding binding agent and is well mixed, obtain mixed slurry A；Wherein, matrix material is aluminum oxide, and additive contains There is strontium carbonate, toughener is the load of five oxidation two and/or niobium pentaoxide, and black dye is the mixture of carbonic acid brill and ferric carbonate And/or manganese carbonate, dispersant is Hydroxypropyl methylcellulose；In the mixed slurry A, its weight proportion is：Additive is 1-4 parts, Toughener is 0.2-3 parts, and black dye 0.5-5 parts, sintering aid 0.2-0.5 parts, binding agent is 0.4-0.6 parts；
2）Mixed slurry A is dried and removes organic solvent, obtain spherical powder B；
3）Spherical powder B is dry-pressing formed, then sinter, just finished product C is obtained, wherein, in sintering process, toughener, black dye Toner can form the strontium oxide of perovskite structure with additive；Sintering concrete mode is：Room temperature rose to through 400 minutes 600 degrees Celsius and be incubated 120 minutes, 600 degrees Celsius through rising within 300 minutes 1150 degrees Celsius and insulation 120 minutes, 1150 take the photograph Family name's degree rose to 1300 degrees Celsius and is incubated 120 minutes through 150 minutes, and 1300 degrees Celsius rose to 1350 degrees Celsius and protect through 50 minutes Temperature 120 minutes, was then down to 900 degrees Celsius through 150 minutes, finally naturally cooled to room temperature；
4）First finished product C is put into maceration extract, after application of vacuum, first finished product C, maceration extract one constant temperature and humidity drying case is inserted into It is interior, after double-steeping, then solidified, high-temperature process obtains finished product after solidification.
Further scheme：The time of the application of vacuum is 20-60 minutes, and vacuum is less than -0.08MPa, drying box Temperature is 30-60 degrees Celsius, and the double-steeping time is 2-8 hours.
Further scheme：The hardening time is 10-16 hours, and solidification temperature is 160-220 degrees Celsius.
Further scheme：The temperature of high-temperature process is 300-500 degrees Celsius after the solidification.
Further scheme：The preparation method of the maceration extract is：By containing hydrogen silicone oil high, positive silicic acid second cruel, deionized water, In stirred in water bath, catalyst is chloroplatinic acid or nickel acetate to catalyst, and bath temperature is 35-40 degrees Celsius, and mixing time is 4-6 Hour, after stirring, 14-18 hours is stood, upper clear supernate is taken as maceration extract, the viscosity of maceration extract is controlled in 150-200mPa s。
Compared with prior art, the beneficial effects of the invention are as follows：
In the present invention, using containing hydrogen silicone oil surface tension high is low, penetration strong and can form nanoscale SiO after decomposing2Particle Feature, realizes the densification of ceramic material, by adjust solidification temperature, high-temperature process temperature, soaking time and control maceration extract Curing degree, reach the purpose of control containing hydrogen silicone oil catabolite high, protocorm particle, adhesion between particle and fiber, So that material is while densification, the toughening effect of fiber is not decayed；The density and compressive strength of material are significantly improved, The dielectric constant and dielectric loss angle tangent of material are substantially unchanged after densification, during low-temperature treatment to the tensile strength of material and Bending strength influence is little；
Meanwhile, the present invention improves the toughness and crash resistance of ceramics, and toughness reaches 6-8MPa.m1/2, drop resistant number of times reaches 10-15 times, And the ceramic blackness of preparation can be improved, obtained ceramic red value of green is 0.06-0.07, blue yellow value is 0.032-0.02, Ceramic surface intensity of reflected light L is 43-44, relative to standard ceramic sample, with blackness higher.
Specific embodiment
The technical scheme of this patent is described in more detail with reference to specific embodiment.
A kind of ceramic composite preparation for processing, the ceramics are admired the strontium of ore deposit structure containing aluminum oxide and with calcium Oxide, the oxide of strontium contains SraAbOcAnd SrXEYOz, wherein, A is tantalum or niobium, and E is the one kind in cobalt, iron and manganese, and a values are 1.5-2.5, b value are 1.5-2.5, and c values are 6.5-7.5, and X values are 0.9-1.1, and Y value is 0.9-1.1, and Z values are 2.7-3.3；It is described Ceramics toughness is 6-8MPa.m1/2, drop resistant number of times is 10-15 times；The ceramic red value of green is 0.06-0.07, and blue Huang value is 0.032-0.02, ceramic surface intensity of reflected light L are 43-44；
The ceramic preparation is comprised the following steps：
1）By containing matrix material, additive, toughener, the ceramic raw material of black dye and sintering aid in organic solvent It is well mixed, it is subsequently adding binding agent and is well mixed, obtain mixed slurry A；Wherein, matrix material is aluminum oxide, and additive contains There is strontium carbonate, toughener is the load of five oxidation two and/or niobium pentaoxide, and black dye is the mixture of carbonic acid brill and ferric carbonate And/or manganese carbonate, dispersant is Hydroxypropyl methylcellulose；In the mixed slurry A, its weight proportion is：Additive is 1-4 parts, Toughener is 0.2-3 parts, and black dye 0.5-5 parts, sintering aid 0.2-0.5 parts, binding agent is 0.4-0.6 parts；
2）Mixed slurry A is dried and removes organic solvent, obtain spherical powder B；
3）Spherical powder B is dry-pressing formed, then sinter, just finished product C is obtained, wherein, in sintering process, toughener, black dye Toner can form the strontium oxide of perovskite structure with additive；Sintering concrete mode is：Room temperature rose to through 400 minutes 600 degrees Celsius and be incubated 120 minutes, 600 degrees Celsius through rising within 300 minutes 1150 degrees Celsius and insulation 120 minutes, 1150 take the photograph Family name's degree rose to 1300 degrees Celsius and is incubated 120 minutes through 150 minutes, and 1300 degrees Celsius rose to 1350 degrees Celsius and protect through 50 minutes Temperature 120 minutes, was then down to 900 degrees Celsius through 150 minutes, finally naturally cooled to room temperature；
4）First finished product C is put into maceration extract, after application of vacuum, first finished product C, maceration extract one constant temperature and humidity drying case is inserted into It is interior, after double-steeping, then solidified, high-temperature process obtains finished product after solidification；
The time of the application of vacuum is 20-60 minutes, and vacuum is less than -0.08MPa, and drying box temperature is 30-60 degrees Celsius, The double-steeping time is 2-8 hours, and hardening time is 10-16 hours, and solidification temperature is 160-220 degrees Celsius, high-temperature process Temperature is 300-500 degrees Celsius；
The preparation method of the maceration extract is：By containing hydrogen silicone oil high, positive silicic acid second is cruel, deionized water, catalyst are stirred in water-bath Mix, catalyst is chloroplatinic acid or nickel acetate, bath temperature is 35-40 degrees Celsius, and mixing time is 4-6 hours, after stirring, is stood 14-18 hours, upper clear supernate is taken as maceration extract, the viscosity of maceration extract is controlled in 150-200mPas；
In the present invention, using containing hydrogen silicone oil surface tension high is low, penetration strong and can form nanoscale SiO after decomposing2Particle Feature, realizes the densification of ceramic material, by adjust solidification temperature, high-temperature process temperature, soaking time and control maceration extract Curing degree, reach the purpose of control containing hydrogen silicone oil catabolite high, protocorm particle, adhesion between particle and fiber, So that material is while densification, the toughening effect of fiber is not decayed；The density and compressive strength of material are significantly improved, The dielectric constant and dielectric loss angle tangent of material are substantially unchanged after densification, during low-temperature treatment to the tensile strength of material and Bending strength influence is little；
Meanwhile, the present invention improves the toughness and crash resistance of ceramics, and toughness reaches 6-8MPa.m1/2, drop resistant number of times reaches 10-15 times, And the ceramic blackness of preparation can be improved, obtained ceramic red value of green is 0.06-0.07, blue yellow value is 0.032-0.02, Ceramic surface intensity of reflected light L is 43-44, relative to standard ceramic sample, with blackness higher.
The better embodiment to this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party Formula, in the ken that one skilled in the relevant art possesses, can also be on the premise of this patent objective not be departed from Make a variety of changes.

Claims (5)

1. a kind of ceramic composite preparation for processing, the ceramics are admired the oxygen of the strontium of ore deposit structure containing aluminum oxide and with calcium Compound, the oxide of strontium contains SraAbOcAnd SrXEYOz, it is characterised in that A is tantalum or niobium, and E is the one kind in cobalt, iron and manganese, a It is 1.5-2.5 to be worth, and b values are 1.5-2.5, and c values are 6.5-7.5, and X values are 0.9-1.1, and Y value is 0.9-1.1, and Z values are 2.7-3.3； The ceramics toughness is 6-8MPa.m1/2, drop resistant number of times is 10-15 times；The ceramic red value of green is 0.06-0.07, and blue Huang value is 0.032-0.02, ceramic surface intensity of reflected light L are 43-44；
The ceramic preparation is comprised the following steps：
To in organic solvent be mixed containing matrix material, additive, toughener, the ceramic raw material of black dye and sintering aid Close uniform, be subsequently adding binding agent and be well mixed, obtain mixed slurry A；Wherein, matrix material is aluminum oxide, and additive contains Strontium carbonate, toughener is the load of five oxidation two and/or niobium pentaoxide, and black dye is the mixture of carbonic acid brill and ferric carbonate And/or manganese carbonate, dispersant is Hydroxypropyl methylcellulose；In the mixed slurry A, its weight proportion is：Additive is 1-4 parts, Toughener is 0.2-3 parts, and black dye 0.5-5 parts, sintering aid 0.2-0.5 parts, binding agent is 0.4-0.6 parts；
Mixed slurry A is dried and removes organic solvent, obtain spherical powder B；
Spherical powder B is dry-pressing formed, then sinter, just finished product C is obtained, wherein, in sintering process, toughener, black-dyeing Agent can form the strontium oxide of perovskite structure with additive；Sintering concrete mode is：Room temperature rose to 600 through 400 minutes Degree Celsius and be incubated 120 minutes, 600 degrees Celsius through rising to 1150 degrees Celsius and insulation 120 minutes, 1150 degrees Celsius for 300 minutes 1300 degrees Celsius being risen to through 150 minutes and being incubated 120 minutes, 1300 degrees Celsius rose to 1350 degrees Celsius and are incubated through 50 minutes 120 minutes, 900 degrees Celsius then were down to through 150 minutes, finally naturally cool to room temperature；
First finished product C is put into maceration extract, after application of vacuum, first finished product C, maceration extract one constant temperature and humidity drying case is inserted into It is interior, after double-steeping, then solidified, high-temperature process obtains finished product after solidification.
2. ceramic composite preparation for processing according to claim 1, it is characterised in that the application of vacuum when Between be 20-60 minute, vacuum be less than -0.08MPa, drying box temperature be 30-60 degrees Celsius, the double-steeping time for 2-8 it is small When.
3. ceramic composite preparation for processing according to claim 1, it is characterised in that the hardening time is 10-16 hours, solidification temperature was 160-220 degrees Celsius.
4. ceramic composite preparation for processing according to claim 1, it is characterised in that after the solidification at high temperature The temperature of reason is 300-500 degrees Celsius.
5. ceramic composite preparation for processing according to claim 1, it is characterised in that the preparation of the maceration extract Method is：By containing hydrogen silicone oil high, positive silicic acid second is cruel, deionized water, catalyst in stirred in water bath, catalyst is chloroplatinic acid or vinegar Sour nickel, bath temperature is 35-40 degrees Celsius, and mixing time is 4-6 hours, after stirring, stands 14-18 hours, takes upper clear supernate Used as maceration extract, the viscosity of maceration extract is controlled in 150-200mPas.
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CN111186951A (en) * 2020-01-14 2020-05-22 北京中科极地抗衰老技术研究院(有限合伙) A kind of container

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CN104744020A (en) * 2013-12-30 2015-07-01 比亚迪股份有限公司 Ceramic and preparation method thereof and ceramic prepared by preparation method
CN104909791A (en) * 2015-05-27 2015-09-16 山东工业陶瓷研究设计院有限公司 Quartz fiber reinforced silica ceramic composite material densification method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104744020A (en) * 2013-12-30 2015-07-01 比亚迪股份有限公司 Ceramic and preparation method thereof and ceramic prepared by preparation method
CN104909791A (en) * 2015-05-27 2015-09-16 山东工业陶瓷研究设计院有限公司 Quartz fiber reinforced silica ceramic composite material densification method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111186951A (en) * 2020-01-14 2020-05-22 北京中科极地抗衰老技术研究院(有限合伙) A kind of container

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