JPS6487568A - Silicon nitride-based sintered body - Google Patents
Silicon nitride-based sintered bodyInfo
- Publication number
- JPS6487568A JPS6487568A JP62247033A JP24703387A JPS6487568A JP S6487568 A JPS6487568 A JP S6487568A JP 62247033 A JP62247033 A JP 62247033A JP 24703387 A JP24703387 A JP 24703387A JP S6487568 A JPS6487568 A JP S6487568A
- Authority
- JP
- Japan
- Prior art keywords
- sio2
- oxide
- group iiia
- sintered body
- iiia element
- 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 improve the bending strength and toughness of the title sintered body by dispersing a metal or its compd. in the composition wherein the molar ratio of the SiO2 to the oxide of a group IIIa element is specified in an Si3N4- SiO2-oxide of a group IIIa element based sintered body. CONSTITUTION:The metallic Nb, Ta, Ti, W, and Mo or their compds. are dispersed in the silicon nitride matrix wherein the molar ratio of the SiO2 to the oxide of a group IIIa element is controlled to >=1 in the three-component silicon nitride-based sintered body (Si3N4-SiO2-oxide of a group IIIa element). Since the metal to be added is hardly melted and deformed at high temp. and has a relatively low thermal expansion coefficient, the bending strength is not sufficiently increased only by adding the metals or their compds. to the three- component body. However, the toughness can be remarkably improved without deteriorating the bending strength by applying the metals or their compds. to the composition wherein the molar ratio of the SiO2 to the oxide of a group IIIa element is controlled to >=1, and sintering the composition.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62247033A JPS6487568A (en) | 1987-09-30 | 1987-09-30 | Silicon nitride-based sintered body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62247033A JPS6487568A (en) | 1987-09-30 | 1987-09-30 | Silicon nitride-based sintered body |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6487568A true JPS6487568A (en) | 1989-03-31 |
Family
ID=17157411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62247033A Pending JPS6487568A (en) | 1987-09-30 | 1987-09-30 | Silicon nitride-based sintered body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6487568A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0441571A2 (en) * | 1990-02-09 | 1991-08-14 | Ngk Insulators, Ltd. | Silicon nitride sintered body and method of producing the same |
-
1987
- 1987-09-30 JP JP62247033A patent/JPS6487568A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0441571A2 (en) * | 1990-02-09 | 1991-08-14 | Ngk Insulators, Ltd. | Silicon nitride sintered body and method of producing the same |
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