CN111747734A - Preparation method of low-temperature sintering heating ceramic material - Google Patents
Preparation method of low-temperature sintering heating ceramic material Download PDFInfo
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- CN111747734A CN111747734A CN202010443614.2A CN202010443614A CN111747734A CN 111747734 A CN111747734 A CN 111747734A CN 202010443614 A CN202010443614 A CN 202010443614A CN 111747734 A CN111747734 A CN 111747734A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 27
- 229910010293 ceramic material Inorganic materials 0.000 title claims abstract description 18
- 238000009766 low-temperature sintering Methods 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000005245 sintering Methods 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 22
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 16
- 238000007731 hot pressing Methods 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 11
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 10
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 10
- 239000000654 additive Substances 0.000 claims abstract description 8
- 230000000996 additive effect Effects 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000006104 solid solution Substances 0.000 claims description 16
- 239000013078 crystal Substances 0.000 claims description 6
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910000329 aluminium sulfate Inorganic materials 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 3
- 239000000347 magnesium hydroxide Substances 0.000 claims description 3
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- 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
- C04B35/10—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 based on aluminium oxide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
- C04B35/645—Pressure sintering
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a preparation method of a low-temperature sintering heating ceramic material, which comprises the following steps: 1) preparation of Al203Ultrafine powder materials; 2) adding a combustion-supporting additive; 3) preserving heat; 4) and (5) hot-pressing and sintering. The invention belongs to the technical field of low-temperature sintering heating ceramic material preparation, and particularly relates to a method for preparing a low-temperature sintering heating ceramic material, wherein a mode of adding a sintering aid additive is adopted in sintering, so that the technical effects of low cost, good effect and simple process are realized, a sintering method of heating and pressurizing is adopted, the sintering temperature is further reduced, and the technical problems of high resource waste rate and complex operation of the traditional sintering method are solved.
Description
Technical Field
The invention belongs to the technical field of low-temperature sintering heating ceramic material preparation, and particularly relates to a preparation method of a low-temperature sintering heating ceramic material.
Background
The alumina ceramic is made of Al203The alumina ceramic is widely applied to the industries of electronics, electrical appliances, machinery, chemical industry, textile, automobile, metallurgy, aerospace and the like, and becomes the oxide ceramic material with the largest consumption in the world at present because of the advantages of high mechanical strength, high hardness, low high-frequency dielectric loss, high-temperature insulation resistance, chemical corrosion resistance, good thermal conductivity and the like, wide raw material source, relatively low price, mature processing and manufacturing technology and the like. However, the alumina ceramic has a melting point as high as 2050 ℃, so that the sintering temperature of the alumina ceramic is generally high, so that the manufacture of the alumina ceramic needs to use a high-temperature heating body or high-quality fuel and a high-grade refractory material as a kiln and kiln furniture, which limits the production and wider application of the alumina ceramic to a certain extent.
Disclosure of Invention
In order to solve the existing problems, the invention provides a method for preparing a low-temperature sintering heating ceramic material, a mode of adding a sintering aid additive is adopted in sintering, the technical effects of low cost, good effect and simple process are realized, a sintering method of heating and pressurizing is adopted, the sintering temperature is further reduced, and the technical problems of high resource waste rate and complex operation of the traditional sintering method are solved.
The technical scheme adopted by the invention is as follows: a preparation method of a low-temperature sintering heating ceramic material comprises the following steps:
1) preparation of Al203Ultra-fine powder: will be (NH)4)SO4Al2(S04)3·2H20 and (MgCO)3)4Mg(OH)2·5H2Mixing with O, heating and decomposing the mixture to obtain Al containing Mg0203Ultrafine powder materials;
2) adding a combustion-supporting additive: adding TiO into the mixture2、Cr2O3、Fe2O3And MnO2Adding Al in equal amount203In the superfine powder, the powder can be mixed with A1 in sintering203To form solid solutions, such solid solutions being doped with solid solutions (e.g. Ti)4 +Substitution of Al3 Ten pieces of clothWhen in a solid solution, or a finite solid solution, or a continuous solid solution (e.g., Cr)2O3With Al2O3Formed), they can activate the crystal lattice (TI)4 +、Al3 +Caused by differences in ionic radii), formation of holes or migration of atoms, deformation of the crystal lattice, which effects cause Al2O3The ceramic is easy to recrystallize and sinter;
3) and (3) heat preservation: preserving heat for 2 hours after sintering;
4) hot-pressing and sintering: and heating and pressurizing the blank body.
Further, the heating temperature in the step 1) is 1200 ℃.
Further, the purity of Mg0 in the step 1) is 99%.
Further, Al described in step 1)203The particle size of the superfine powder is 2-5 μm.
Further, the temperature of the hot-pressing sintering in the step 1) is 1000 ℃.
Further, the hot pressing of the hot pressing sintering in the step 1) is 20 MPa.
By adopting the scheme, the invention has the following beneficial effects: the method for preparing the low-temperature sintering heating ceramic material adopts a mode of adding the sintering aid additive in sintering, realizes the technical effects of low cost, good effect and simple process, further reduces the sintering temperature by adopting a heating and pressurizing sintering method, and solves the technical problems of high resource waste rate and complex operation of the traditional sintering method.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme adopted by the invention is as follows: a preparation method of a low-temperature sintering heating ceramic material comprises the following steps:
1) preparation of Al203Ultra-fine powder: will be (NH)4)SO4Al2(S04)3·2H20 and (MgCO)3)4Mg(OH)2·5H2Mixing with O, heating and decomposing the mixture to obtain Al containing Mg0203Ultrafine powder materials;
2) adding a combustion-supporting additive: adding TiO into the mixture2、Cr2O3、Fe2O3And MnO2Adding Al in equal amount203In the superfine powder, the powder can be mixed with A1 in sintering203To form solid solutions, such solid solutions being doped with solid solutions (e.g. Ti)4 +Substitution of Al3 Ten pieces of clothWhen in a solid solution, or a finite solid solution, or a continuous solid solution (e.g., Cr)2O3With Al2O3Formed), they can activate the crystal lattice (TI)4 +、Al3 +Caused by differences in ionic radii), formation of holes or migration of atoms, deformation of the crystal lattice, which effects cause Al2O3The ceramic is easy to recrystallize and sinter;
3) and (3) heat preservation: preserving heat for 2 hours after sintering;
4) hot-pressing and sintering: and heating and pressurizing the blank body.
Further, the heating temperature in the step 1) is 1200 ℃.
Further, the purity of Mg0 in the step 1) is 99%.
Further, Al described in step 1)203The particle size of the superfine powder is 2-5 μm.
Further, the temperature of the hot-pressing sintering in the step 1) is 1000 ℃.
Further, the hot pressing of the hot pressing sintering in the step 1) is 20 MPa.
The method for preparing the low-temperature sintering heating ceramic material adopts a mode of adding the sintering aid additive in sintering, realizes the technical effects of low cost, good effect and simple process, further reduces the sintering temperature by adopting a heating and pressurizing sintering method, and solves the technical problems of high resource waste rate and complex operation of the traditional sintering method.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. The preparation method of the low-temperature sintering heating ceramic material is characterized by comprising the following steps of:
1) preparation of Al203Ultra-fine powder: will be (NH)4)SO4Al2(S04)3·2H20 and (MgCO)3)4Mg(OH)2·5H2Mixing with O, heating and decomposing the mixture to obtain Al containing Mg0203Ultrafine powder materials;
2) adding a combustion-supporting additive: adding TiO into the mixture2、Cr2O3、Fe2O3And MnO2Adding Al in equal amount203In the superfine powder, the powder can be mixed with A1 in sintering203Solid solutions are produced, either as doped solid solutions, or as finite solid solutions, or as continuous solid solutions, which activate the crystal lattice, form vacancies, or migrate atoms, deforming the crystal lattice, which effects Al2O3The ceramic is easy to recrystallize and sinter;
3) and (3) heat preservation: preserving heat for 2 hours after sintering;
4) hot-pressing and sintering: and heating and pressurizing the blank body.
2. The method for preparing a low-temperature sintering exothermic ceramic material according to claim 1, wherein the heating temperature in step 1) is 1200 ℃.
3. The method for preparing a low-temperature sintering exothermic ceramic material according to claim 1, wherein the Mg0 of step 1) has a purity of 99%.
4. The method for preparing a low-temperature sintering exothermic ceramic material according to claim 1, wherein the Al in step 1)203The particle size of the superfine powder is 2-5 μm.
5. The method for preparing a low-temperature sintering exothermic ceramic material according to claim 1, wherein the temperature of the hot-press sintering in step 1) is 1000 ℃.
6. The method for preparing a low-temperature sintering exothermic ceramic material according to claim 1, wherein the hot pressing of the hot pressing sintering in step 1) is 20 MPa.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010443614.2A CN111747734A (en) | 2020-05-22 | 2020-05-22 | Preparation method of low-temperature sintering heating ceramic material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010443614.2A CN111747734A (en) | 2020-05-22 | 2020-05-22 | Preparation method of low-temperature sintering heating ceramic material |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5175132A (en) * | 1991-11-19 | 1992-12-29 | Ketcham Thomas D | Sinterable ceramic compositions |
| CN101148352A (en) * | 2007-09-04 | 2008-03-26 | 桂林工学院 | Tungsten corundum ceramic material and low temperature sintering method |
| CN101182190A (en) * | 2007-09-04 | 2008-05-21 | 桂林工学院 | Mo-corundum ceramic material and low-temperature sintering method |
-
2020
- 2020-05-22 CN CN202010443614.2A patent/CN111747734A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5175132A (en) * | 1991-11-19 | 1992-12-29 | Ketcham Thomas D | Sinterable ceramic compositions |
| CN101148352A (en) * | 2007-09-04 | 2008-03-26 | 桂林工学院 | Tungsten corundum ceramic material and low temperature sintering method |
| CN101182190A (en) * | 2007-09-04 | 2008-05-21 | 桂林工学院 | Mo-corundum ceramic material and low-temperature sintering method |
Non-Patent Citations (6)
| Title |
|---|
| 中国建设科技文库编委会: "《中国建设科技文库 建筑材料卷》", 30 September 1998, 北京：中国建材工业出版社 * |
| 刘建红等: "氧化铝陶瓷低温烧结技术的探讨", 《真空电子与专用金属材料 陶瓷-金属封接专辑》 * |
| 席慧智等: "《材料化学导论》", 31 August 2017, 哈尔滨工业大学出版社 * |
| 朱洪法等: "《工业助剂手册》", 30 June 2007, 北京：金盾出版社 * |
| 田欣利等: "《工程陶瓷先进加工与质量控制技术》", 31 May 2014, 北京：国防工业出版社 * |
| 米晓云等: "《Al2O3纳米粉体及透明陶瓷》", 31 March 2012, 吉林大学出版社 * |
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Application publication date: 20201009 |