CN1422827A - Nitride/alumina based composite ceramic material and process of preparing the same - Google Patents
Nitride/alumina based composite ceramic material and process of preparing the same Download PDFInfo
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- CN1422827A CN1422827A CN 02151502 CN02151502A CN1422827A CN 1422827 A CN1422827 A CN 1422827A CN 02151502 CN02151502 CN 02151502 CN 02151502 A CN02151502 A CN 02151502A CN 1422827 A CN1422827 A CN 1422827A
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- titanium
- nitride
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- aluminum oxide
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- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The invention refers to a nitride/alumina-group composite ceramic material and the preparing techinque. It comprises of titanium chloride, aluminium nitride and alumina. The technique; ball-mill the titanium powder, aluminium powder and trace additive yttria and alumina micro-powder to make powder, and shape by heat press under nitrogen condition.
Description
1, technical field: the invention belongs to the engineering ceramic material field, especially relate to the nitride/alumina-based composite ceramics material and the preparation technology thereof of a kind of sintex and used for hot spraying.
2, background technology: aluminum oxide base ceramics cutting tool material is to study an a lot of class high rigidity cutter material in recent decades, use at present success such as the toughness reinforcing aluminum oxide base ceramics cutting tool material of silicon carbide whisker toughness reinforcing aluminum oxide tool material, silicon carbide whisker/silicon-carbide particle and the alumina tool material of transformation toughening.These materials are often because material cost or complicated process of preparation cause cost too high.By crystal whisker toughened alumina ceramic material, is exactly that complicated process of preparation causes the material property price than unreasonable because the whisker price is higher as simple.In the toughness reinforcing alumina ceramic material of silicon carbide whisker as mentioned above, just expensive 10～12 times of silicon carbide whiskers than similar sic powder, add whisker and join in the material, its hybrid technique is more than the mixing complexity of powder, so the cost of material is higher relatively.
3, summary of the invention: the objective of the invention is to overcome above-mentioned the deficiencies in the prior art, utilize the lower powder of price, the rational nitride of a kind of cost/performance ratio/alumina-based composite ceramics material and preparation technology thereof is provided.This material can be used for the cutting and the high abrasion occasion of high tough material.
The present invention realizes in the following manner:
Nitride/alumina-based composite ceramics material is characterized in that: it is made up of titanium nitride, aluminium nitride and aluminum oxide three parts, and the quality percentage composition of aluminum oxide is: 63%～87%.
The preparation technology of above-mentioned nitride/alumina-based composite ceramics material, its feature may further comprise the steps:
1) metallic titanium powder and aluminium powder were pressed atomic ratio 1: 1～10: 1 and a small amount of additive batching, dry ball milling refinement, mixing;
2) titanium, aluminium mixed powder and aluminum oxide fine powder are pressed the quality percentage composition scope batching of aluminum oxide 70%～90%, titanium aluminium powder 10～30%, make ball-milling medium with dehydrated alcohol, together behind the ball milling, dry in vacuum drier slip again, sieve, make titanium, aluminium/aluminum oxide mixed powder;
3) titanium, aluminium/aluminum oxide mixed powder material are packed in the graphite jig, hot pressed sintering is made protection gas with nitrogen, and firing range is: 1400～1650 ℃, pressure is 25～40MPa.
Above-mentioned steps 1) additive described in is: yttrium oxide.The quality add-on of yttrium oxide is 1%～3% of titanium, aluminium/aluminum oxide mixed powder.
Aluminium nitride has good physical and chemical performance, and its thermal conductivity can reach 320W.m in theory
-1.K
-1, heat, stable chemical performance.Under certain process conditions, can form aluminium nitride whisker and aluminium nitride subparticle (110-200nm); Titanium nitride also has high rigidity, high-melting-point, characteristics that chemical stability is good, is a kind of good Fire and abrasion resistant material.Therefore they and aluminum oxide are compound, can improve Al
2O
3Strong, the hardness of stupalith and improve cutting ability.And the composite ceramic material ratio of performance to price that forms is reasonable, has expanded Al
2O
3The range of application of stupalith.4, embodiment
Provide two most preferred embodiments of the present invention below
Embodiment one: aluminum oxide is 90% by mass percentage, the titanium aluminium powder is that 10% (titanium, al atomic ratio are 1: 1) prepared raw material in the present invention.At first titanium, aluminium powder and additive yttrium oxide (add-on of yttrium oxide be titanium, aluminium/aluminum oxide mixed powder quality 3%) are mixed, ball milling is 25 hours in high energy ball mill, add aluminum oxide powder and the agent of dehydrated alcohol ball milling then, mix grinding 5 hours after vacuum-drying, screens with 100 mesh sieves, hot pressed sintering under nitrogen, top temperature is 1600 ℃, pressurization 40MPa, sintering 1 hour.Can obtain relative density and be 99.5% blank, hardness/HRA is 94.2, and fracture toughness property is 6.5Mpam
1/2, bending strength is 501MPa.Each constituent mass percentage composition aluminum oxide is 86.7% in the product, and titanium nitride is 7.9%, and aluminium nitride is 5.4%.
Embodiment two: aluminum oxide is 85% by mass percentage, the titanium aluminium powder is that 15% (titanium, al atomic ratio are 1: 1) prepared raw material in the present invention.At first titanium, aluminium powder and additive yttrium oxide (add-on of yttrium oxide be titanium, aluminium/aluminum oxide mixed powder quality 1%) are mixed, ball milling is 25 hours in high energy ball mill, add aluminum oxide powder and the agent of dehydrated alcohol ball milling then, mix grinding 3 hours after vacuum-drying, screens with 120 mesh sieves, hot pressed sintering under nitrogen, top temperature is 1540 ℃, pressurization 40Mpa, sintering 40 minutes.Can obtain relative density and be 99% blank, hardness/HRA is 93.3, and fracture toughness property is 8.3Mpam
1/2, bending strength is 687Mpa.Each constituent mass percentage composition aluminum oxide is 80.5% in the product, and titanium nitride is 11.7%, and aluminium nitride is 7.8%
Claims (4)
1. nitride/alumina-based composite ceramics material, it is characterized in that: it is made up of titanium nitride, aluminium nitride and aluminum oxide three parts, and the quality percentage composition of aluminum oxide is: 63%～87%.
2. technology for preparing the described nitride of claim 1/alumina-based composite ceramics material, its feature may further comprise the steps:
1) metallic titanium powder and aluminium powder were pressed atomic ratio 1: 1～10: 1 and a small amount of additive batching, dry ball milling refinement, mixing;
2) titanium, aluminium mixed powder and aluminum oxide fine powder are pressed the quality percentage composition scope batching of aluminum oxide 70%～90%, titanium aluminium powder 10～30%, make ball-milling medium with dehydrated alcohol, together behind the ball milling, dry in vacuum drier slip again, sieve, make titanium, aluminium/aluminum oxide mixed powder;
3) titanium, aluminium/aluminum oxide mixed powder material are packed in the graphite jig, hot pressed sintering is made protection gas with nitrogen, and firing range is: 1400-1650 ℃, pressure is 25-40MPa.
3. according to the preparation technology of the described nitride of claim 2/alumina-based composite ceramics material, it is characterized in that the additive in the described step 1) is: yttrium oxide.
4. the preparation technology of nitride according to claim 3/alumina-based composite ceramics material, the quality add-on that it is characterized in that described additive yttrium oxide are 1%～3% of titanium, aluminium/aluminum oxide mixed powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02151502 CN1209318C (en) | 2002-12-24 | 2002-12-24 | Nitride/alumina based composite ceramic material and process of preparing the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02151502 CN1209318C (en) | 2002-12-24 | 2002-12-24 | Nitride/alumina based composite ceramic material and process of preparing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1422827A true CN1422827A (en) | 2003-06-11 |
| CN1209318C CN1209318C (en) | 2005-07-06 |
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| CN 02151502 Expired - Fee Related CN1209318C (en) | 2002-12-24 | 2002-12-24 | Nitride/alumina based composite ceramic material and process of preparing the same |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100335441C (en) * | 2003-06-14 | 2007-09-05 | 宜兴市法兰特工贸有限公司 | Ceramic valve plate for double gate valve |
| CN100347124C (en) * | 2005-11-23 | 2007-11-07 | 中国科学院上海硅酸盐研究所 | Preparation process of conducting aluminium oxide base nano ceramic material |
| CN100404465C (en) * | 2006-10-30 | 2008-07-23 | 陕西科技大学 | Method for preparing TiN/Al2O3 composite materials |
| CN102815957A (en) * | 2012-08-03 | 2012-12-12 | 西安特种设备检验检测院 | Nonferrous metal alloy-toughened aluminum nitride ceramic-based composite material and preparation method thereof |
| CN103435334A (en) * | 2013-08-12 | 2013-12-11 | 唐山市科硕特种陶瓷制造有限公司 | Composite ceramic material for LED energy-saving lamp base |
| CN107915476A (en) * | 2017-12-06 | 2018-04-17 | 王增倍 | A kind of perforating head and preparation method |
| CN110467443A (en) * | 2019-09-19 | 2019-11-19 | 广东工业大学 | A kind of aluminium nitride/Toughened Alumina Ceramics and preparation method thereof |
| CN115650759A (en) * | 2022-08-29 | 2023-01-31 | 深圳陶陶科技有限公司 | Porous alumina ceramic sheet applied to packaging of gas sensor and preparation method thereof |
-
2002
- 2002-12-24 CN CN 02151502 patent/CN1209318C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100335441C (en) * | 2003-06-14 | 2007-09-05 | 宜兴市法兰特工贸有限公司 | Ceramic valve plate for double gate valve |
| CN100347124C (en) * | 2005-11-23 | 2007-11-07 | 中国科学院上海硅酸盐研究所 | Preparation process of conducting aluminium oxide base nano ceramic material |
| CN100404465C (en) * | 2006-10-30 | 2008-07-23 | 陕西科技大学 | Method for preparing TiN/Al2O3 composite materials |
| CN102815957A (en) * | 2012-08-03 | 2012-12-12 | 西安特种设备检验检测院 | Nonferrous metal alloy-toughened aluminum nitride ceramic-based composite material and preparation method thereof |
| CN102815957B (en) * | 2012-08-03 | 2014-05-07 | 西安特种设备检验检测院 | Nonferrous metal alloy-toughened aluminum nitride ceramic-based composite material and preparation method thereof |
| CN103435334A (en) * | 2013-08-12 | 2013-12-11 | 唐山市科硕特种陶瓷制造有限公司 | Composite ceramic material for LED energy-saving lamp base |
| CN103435334B (en) * | 2013-08-12 | 2015-11-25 | 唐山市科硕特种陶瓷制造有限公司 | LED electricity-saving lamp pedestal composite ceramic material |
| CN107915476A (en) * | 2017-12-06 | 2018-04-17 | 王增倍 | A kind of perforating head and preparation method |
| CN110467443A (en) * | 2019-09-19 | 2019-11-19 | 广东工业大学 | A kind of aluminium nitride/Toughened Alumina Ceramics and preparation method thereof |
| CN115650759A (en) * | 2022-08-29 | 2023-01-31 | 深圳陶陶科技有限公司 | Porous alumina ceramic sheet applied to packaging of gas sensor and preparation method thereof |
| CN115650759B (en) * | 2022-08-29 | 2023-09-01 | 深圳陶陶科技有限公司 | Porous alumina ceramic sheet applied to gas sensor packaging and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1209318C (en) | 2005-07-06 |
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