CN1730434A - Nano ZrO2 ceramic material and its preparation method - Google Patents
Nano ZrO2 ceramic material and its preparation method Download PDFInfo
- Publication number
- CN1730434A CN1730434A CN200510012120.4A CN200510012120A CN1730434A CN 1730434 A CN1730434 A CN 1730434A CN 200510012120 A CN200510012120 A CN 200510012120A CN 1730434 A CN1730434 A CN 1730434A
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- Prior art keywords
- zro
- stupalith
- mgo
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- 229910010293 ceramic material Inorganic materials 0.000 title claims abstract description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 title abstract 8
- 238000002360 preparation method Methods 0.000 title description 11
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000007670 refining Methods 0.000 claims abstract description 9
- 238000005245 sintering Methods 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 6
- 238000005056 compaction Methods 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 238000000137 annealing Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000009472 formulation Methods 0.000 abstract 1
- 238000000227 grinding Methods 0.000 abstract 1
- 238000007873 sieving Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention relates to a nano ZrO2 ceramic material and its preparing process by using ZrO2 and MgO as raw material, wherein the formulation of the raw materials includes ZrO2 0.9-0.92, MgO 0.08-0.1, the ratio being the real mole number. The preparing process consists of ball grinding and mixing, drying, sieving, cold isostatically pressing, sintering in air atmosphere at 1450-1650 deg C, thermally insulating 4-10 hours, carrying out grain refining annealing treatment at 900-1300 deg C for 10-50 hours.
Description
Technical field
The present invention relates to a kind of nanometer ZrO
2Stupalith and preparation method thereof belongs to ceramic materials preparation technology field.
Background technology
Nanometer ZrO
2Stupalith because it has big viscous deformation, makes it have the high temperature process performance.Owing to be attended by grain growth process in the ceramic powder sintering process, sintering method commonly used is difficult to prepare the little nanometer ZrO of grain-size
2Stupalith.
Summary of the invention
It is simple to the purpose of this invention is to provide a kind of preparation technology, the nanometer ZrO that crystal grain is tiny
2Stupalith and preparation method thereof.By sintering process, preparation high-density micron ZrO
2Stupalith carries out the grain refining anneal at lesser temps, obtains the nanometer ZrO of crystal grain less than the 500nm excellent property
2Stupalith.
The nanometer ZrO that the present invention proposes
2Stupalith is characterized in that: this material is with ZrO
2With MgO be raw material, the prescription of described material is: ZrO
2: 0.9～0.92, and MgO:0.08～0.1, its ratio is actual mole number.
The nanometer ZrO that the present invention proposes
2The preparation method of stupalith is characterized in that, described method adopts the grain refining method, and this method is carried out successively as follows:
(1) weighing is ZrO in molar ratio respectively
2: 0.9～0.92, and MgO:0.08～0.1, prepare burden;
(2) powder of being prepared is carried out ball mill mixing;
Cold isostatic compaction is sieved in the material oven dry that (3) will mix;
(4) the good material that will be shaped carries out sintering in 1450 ℃～1650 ℃ air atmospheres, and be incubated 4 hours～10 hours;
(5) the above-mentioned stupalith that sinters is carried out the grain refining anneal at 900～1300 ℃, promptly get the nanometer ZrO of grain-size less than 500nm
2Stupalith.
Utilize the nanometer ZrO of prescription of the present invention and preparation method preparation
2Stupalith, grain-size be less than 500nm.This preparation method technology is simple, low-cost, is applicable to suitability for industrialized production.
Embodiment
The present invention will be further described below in conjunction with embodiment:
Embodiment 1
(1) weighing is ZrO in molar ratio respectively
2: 0.9, MgO:0.1 prepares burden;
(2) powder of being prepared is carried out ball mill mixing;
Cold isostatic compaction is sieved in the material oven dry that (3) will mix;
(4) the good material that will be shaped carries out sintering in 1650 ℃ of air atmospheres, and is incubated 8 hours;
(5) the above-mentioned stupalith that sinters is carried out the grain refining anneal at 1200 ℃, 20 hours.Promptly get the nanometer ZrO that grain-size is 300nm
2Stupalith.
Embodiment 2
(1) weighing is ZrO in molar ratio respectively
2: 0.91, MgO:0.09 prepares burden;
(2) powder of being prepared is carried out ball mill mixing;
Cold isostatic compaction is sieved in the material oven dry that (3) will mix;
(4) the good material that will be shaped carries out sintering in 1600 ℃ of air atmospheres, and is incubated 10 hours;
(5) the above-mentioned stupalith that sinters is carried out the grain refining anneal at 1100 ℃, 30 hours.Promptly get the nanometer ZrO that grain-size is 260nm
2Stupalith.
Embodiment 3
(1) weighing is ZrO in molar ratio respectively
2: 0.92, MgO:0.08 prepares burden;
(2) powder of being prepared is carried out ball mill mixing;
Cold isostatic compaction is sieved in the material oven dry that (3) will mix;
(4) the good material that will be shaped carries out sintering in 1500 ℃ of air atmospheres, and is incubated 12 hours;
(5) the above-mentioned stupalith that sinters is carried out the grain refining anneal at 1000 ℃, 30 hours.Promptly get the nanometer ZrO that grain-size is 220nm
2Stupalith.
Claims (2)
1, nanometer ZrO
2Stupalith is characterized in that: this material is with ZrO
2With MgO be raw material, the prescription of described material is: ZrO
2: 0.9～0.92, and MgO:0.08～0.1, its ratio is actual mole number.
2, prepare nanometer ZrO according to claim 1
2Method of ceramic material is characterized in that, described method adopts the grain refining method, and this method is carried out successively as follows:
(1) weighing is ZrO in molar ratio respectively
2: 0.9～0.92, and MgO:0.08～0.1, prepare burden;
(2) powder of being prepared is carried out ball mill mixing;
Cold isostatic compaction is sieved in the material oven dry that (3) will mix;
(4) the good material that will be shaped carries out sintering in 1450 ℃～1650 ℃ air atmospheres, and be incubated 4 hours～10 hours;
(5) the above-mentioned stupalith that sinters is carried out the grain refining anneal at 900～1300 ℃, promptly get the nanometer ZrO of grain-size less than 500nm
2Stupalith.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510012120.4A CN1298673C (en) | 2005-07-08 | 2005-07-08 | Nano ZrO2 ceramic material and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510012120.4A CN1298673C (en) | 2005-07-08 | 2005-07-08 | Nano ZrO2 ceramic material and its preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1730434A true CN1730434A (en) | 2006-02-08 |
| CN1298673C CN1298673C (en) | 2007-02-07 |
Family
ID=35962860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200510012120.4A Expired - Fee Related CN1298673C (en) | 2005-07-08 | 2005-07-08 | Nano ZrO2 ceramic material and its preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1298673C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106187170A (en) * | 2016-07-07 | 2016-12-07 | 横店集团浙江英洛华电子有限公司 | A kind of preparation method of zirconia ceramics cell phone rear cover and products thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059415C (en) * | 1995-04-05 | 2000-12-13 | 中国科学院兰州化学物理研究所 | Sintering method of tetragonal zircite ceramic |
| CN1084304C (en) * | 1999-11-19 | 2002-05-08 | 清华大学 | Green synthesis of superfine zirconia solid solution powder |
-
2005
- 2005-07-08 CN CN200510012120.4A patent/CN1298673C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106187170A (en) * | 2016-07-07 | 2016-12-07 | 横店集团浙江英洛华电子有限公司 | A kind of preparation method of zirconia ceramics cell phone rear cover and products thereof |
| CN106187170B (en) * | 2016-07-07 | 2019-03-22 | 横店集团浙江英洛华电子有限公司 | A kind of preparation method and products thereof of zirconia ceramics cell phone rear cover |
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| Publication number | Publication date |
|---|---|
| CN1298673C (en) | 2007-02-07 |
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