JPS6456368A - Silicon nitride sintered body - Google Patents
Silicon nitride sintered bodyInfo
- Publication number
- JPS6456368A JPS6456368A JP62214026A JP21402687A JPS6456368A JP S6456368 A JPS6456368 A JP S6456368A JP 62214026 A JP62214026 A JP 62214026A JP 21402687 A JP21402687 A JP 21402687A JP S6456368 A JPS6456368 A JP S6456368A
- Authority
- JP
- Japan
- Prior art keywords
- si3n4
- sintered body
- beta
- oxide
- oxidation
- 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.)
- Pending
Links
Landscapes
- Ceramic Products (AREA)
Abstract
PURPOSE:To produce the titled sintered body superior in resistance to oxidation and high temp. characteristics, and available for a gas turbine, etc. by mixing beta-Si3N4 and oxide, etc. of Y, etc., and sintering the mixture to grow mainly an apatite crystal at a grain boundary phase and to develop a definite strength, etc. CONSTITUTION:Both of alpha- or beta-Si3N4 powder of >=10m<2>/g BET specific surface area and <=3wt.% O2 content and of the metallic compd(s) selected from the group of Sc, Yb, Er, Ho, and Dy are mixed to have the compsn. of 85-99mol.% beta-Si3N4 and 1-5mol.% metallic compd(s) reduced to the oxide forms in the sintered body, and fired at 1,600-2,300 deg.C in the N2-contg. nonoxidizing atmo sphere. Then, the fired body is cooled at a desired rate of cooling to obtain the Si3N4 sintered body, in which the mol. ratio of the excess oxygen content expressed in terms of SiO2/ the aboe-mentioned metallic oxide (M2O3) is >=0.8, the main crystal in the Si3N4 grain boundary phase being the apatite or disilicate, the high temp. flexural strength (1,400<=, the four-point bending strength) being >=40kg/mm<2>, the wt. increase due to the oxidation at a moderate temp. being <=0.1mg/cm<2>.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62214026A JPS6456368A (en) | 1987-08-27 | 1987-08-27 | Silicon nitride sintered body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62214026A JPS6456368A (en) | 1987-08-27 | 1987-08-27 | Silicon nitride sintered body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6456368A true JPS6456368A (en) | 1989-03-03 |
Family
ID=16649044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62214026A Pending JPS6456368A (en) | 1987-08-27 | 1987-08-27 | Silicon nitride sintered body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6456368A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6461358A (en) * | 1987-08-31 | 1989-03-08 | Kyocera Corp | Silicon nitride sintered compact |
| JPS6461357A (en) * | 1987-08-31 | 1989-03-08 | Kyocera Corp | Silicon nitride sintered material |
| US5945363A (en) * | 1996-08-20 | 1999-08-31 | Ngk Insulators, Ltd. | Silicon nitride sintered material |
| DE102010030125A1 (en) | 2009-06-26 | 2010-12-30 | Suzuki Motor Corp., Hamamatsu-Shi | Spring support arrangement for a rear suspension |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6296368A (en) * | 1985-10-23 | 1987-05-02 | 日本特殊陶業株式会社 | Manufacture of high anticorrosive silicon nitride sintered body |
| JPS62105957A (en) * | 1985-10-31 | 1987-05-16 | 京セラ株式会社 | Silicon nitride base sintered body and manufacture |
| JPS63100066A (en) * | 1986-06-02 | 1988-05-02 | トヨタ自動車株式会社 | Silicon nitride sintered body |
| JPS63100067A (en) * | 1986-06-12 | 1988-05-02 | 日本碍子株式会社 | Silicon nitride sintered body and manufacture |
-
1987
- 1987-08-27 JP JP62214026A patent/JPS6456368A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6296368A (en) * | 1985-10-23 | 1987-05-02 | 日本特殊陶業株式会社 | Manufacture of high anticorrosive silicon nitride sintered body |
| JPS62105957A (en) * | 1985-10-31 | 1987-05-16 | 京セラ株式会社 | Silicon nitride base sintered body and manufacture |
| JPS63100066A (en) * | 1986-06-02 | 1988-05-02 | トヨタ自動車株式会社 | Silicon nitride sintered body |
| JPS63100067A (en) * | 1986-06-12 | 1988-05-02 | 日本碍子株式会社 | Silicon nitride sintered body and manufacture |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6461358A (en) * | 1987-08-31 | 1989-03-08 | Kyocera Corp | Silicon nitride sintered compact |
| JPS6461357A (en) * | 1987-08-31 | 1989-03-08 | Kyocera Corp | Silicon nitride sintered material |
| US5945363A (en) * | 1996-08-20 | 1999-08-31 | Ngk Insulators, Ltd. | Silicon nitride sintered material |
| US6099794A (en) * | 1996-08-20 | 2000-08-08 | Ngk Insulators, Ltd. | Process for production of silicon nitride material |
| DE102010030125A1 (en) | 2009-06-26 | 2010-12-30 | Suzuki Motor Corp., Hamamatsu-Shi | Spring support arrangement for a rear suspension |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0139793B1 (en) | A silicon nitride sintered body and a method for producing it | |
| JPS6152108B2 (en) | ||
| JPS63100067A (en) | Silicon nitride sintered body and manufacture | |
| JPS6456368A (en) | Silicon nitride sintered body | |
| JP2577899B2 (en) | Silicon nitride sintered body and method for producing the same | |
| JPH08733B2 (en) | Heat shock resistant silicon nitride sintered body and method for producing the same | |
| JPH031270B2 (en) | ||
| JPS6451378A (en) | Production of silicon nitride sintered body for cutting tool | |
| JP2874057B2 (en) | Silicon nitride powder | |
| Mitomo | In situ microstructure control in silicon nitride based ceramics | |
| JPS63270360A (en) | High-density sintered silicon oxynitride and production thereof | |
| JP2687632B2 (en) | Method for producing silicon nitride sintered body | |
| EP0825162B1 (en) | Silicon nitride sintered material and process for production thereof | |
| JPS63252967A (en) | Manufacture of silicon nitride base sintered body | |
| Tani et al. | Gas Pressure Sintering of Composite of Si sub 3 N sub 4--SiC System | |
| JP2691295B2 (en) | Silicon nitride sintered body | |
| JPH035371A (en) | Production of si3n4 sintered compact | |
| JPH0672054B2 (en) | Silicon nitride sintered body and manufacturing method thereof | |
| JPH10279360A (en) | Silicon nitride structural parts and its production | |
| JP2602036B2 (en) | Manufacturing method of high strength zirconia ceramic | |
| JPS6461358A (en) | Silicon nitride sintered compact | |
| JPS6487566A (en) | Production of silicon nitride-based sintered body | |
| JPS6415344A (en) | Manufacture of sintered high-speed steel member | |
| EP0254459A3 (en) | Manufacture of ceramic bodies from silicon nitride | |
| JPH01282154A (en) | Production of fiber-reinforced silicon oxynitride sintered compact |