JPS6437469A - Production of ceramic of silicon nitride - Google Patents
Production of ceramic of silicon nitrideInfo
- Publication number
- JPS6437469A JPS6437469A JP62195069A JP19506987A JPS6437469A JP S6437469 A JPS6437469 A JP S6437469A JP 62195069 A JP62195069 A JP 62195069A JP 19506987 A JP19506987 A JP 19506987A JP S6437469 A JPS6437469 A JP S6437469A
- Authority
- JP
- Japan
- Prior art keywords
- si3n4
- average particle
- particle diameter
- dried powder
- additives
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE:To obtain ceramic Si3N4 having excellent heat resistance, thermal shock resistance, strength in a wide temperature range and high uniformity, by adding a specific additives to Si3N4 and sintering. CONSTITUTION:100pts.wt. Si3N4 having >=90% ratio of crystallization of alphatype and <=1mum average particle diameter is blended with 3.0-15.0pts.wt. Y2O3 and/or R2O3 (R is rare earth element of La type), 3.0-10.0pts.wt. MgAl2O4, 0.1-1.0pt.wt. Cr2O3 and 0.1-1.0pt.wt. SiO2 as additives, dried and ground to give dried powder having 30-120mum average particle diameter. Then the dried powder is press molded by a mold and sintered under heating at normal pressure in an N2 gas atmosphere at 1,600-1,800 deg.C for 30min-sevral hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62195069A JP2526598B2 (en) | 1987-08-04 | 1987-08-04 | Method for manufacturing silicon nitride ceramics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62195069A JP2526598B2 (en) | 1987-08-04 | 1987-08-04 | Method for manufacturing silicon nitride ceramics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6437469A true JPS6437469A (en) | 1989-02-08 |
| JP2526598B2 JP2526598B2 (en) | 1996-08-21 |
Family
ID=16335038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62195069A Expired - Fee Related JP2526598B2 (en) | 1987-08-04 | 1987-08-04 | Method for manufacturing silicon nitride ceramics |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2526598B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02225304A (en) * | 1989-02-27 | 1990-09-07 | Denki Kagaku Kogyo Kk | Production of silicon nitride, silicon nitride powder and use of the same powder |
| EP0691483A4 (en) * | 1993-11-02 | 1997-06-11 | Koyo Seiko Co | Ball-and-roller bearing |
| CN115677357A (en) * | 2022-11-10 | 2023-02-03 | 中国科学院上海硅酸盐研究所 | High-wear-resistance silicon nitride ceramic and preparation method thereof |
-
1987
- 1987-08-04 JP JP62195069A patent/JP2526598B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02225304A (en) * | 1989-02-27 | 1990-09-07 | Denki Kagaku Kogyo Kk | Production of silicon nitride, silicon nitride powder and use of the same powder |
| EP0691483A4 (en) * | 1993-11-02 | 1997-06-11 | Koyo Seiko Co | Ball-and-roller bearing |
| CN115677357A (en) * | 2022-11-10 | 2023-02-03 | 中国科学院上海硅酸盐研究所 | High-wear-resistance silicon nitride ceramic and preparation method thereof |
| CN115677357B (en) * | 2022-11-10 | 2023-07-11 | 中国科学院上海硅酸盐研究所 | High-wear-resistance silicon nitride ceramic and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2526598B2 (en) | 1996-08-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |