JPS6469506A - Silicon nitride powder and production thereof - Google Patents
Silicon nitride powder and production thereofInfo
- Publication number
- JPS6469506A JPS6469506A JP22596087A JP22596087A JPS6469506A JP S6469506 A JPS6469506 A JP S6469506A JP 22596087 A JP22596087 A JP 22596087A JP 22596087 A JP22596087 A JP 22596087A JP S6469506 A JPS6469506 A JP S6469506A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- silicon nitride
- less
- nitride powder
- mg2sio4
- 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
Abstract
PURPOSE:To obtain an easily sinterable silicon nitride powder, which enables low-temperature sintering in the normal pressure, by kneading a metallic silicon powder, Mg2SiO4 powder, ZrO2 powder and a forming binder, forming the mixture and nitriding with heat before pulverization. CONSTITUTION:100pts.wt. of a metallic silicon powder are kneaded with 2-21pts.wt. of forsterite (Mg2SiO4) powder and 1-18pts.wt. of zirconium oxide (ZrO2), as well as a molding binder. The kneaded composition is formed, dried, converted into nitride by heating at 1,000-1,500 deg.C in a nitrogen or ammonia powder, and crushed into a powder. The product is a silicon nitride powder consisting of Mg: 0.4-3.4wt.%, Zr: 0.4-7wt.%, N: 31-38wt.%, O: 3-9wt.% and small amounts of elements as unavoidable contaminants. If the contamination can be controlled less than 0.5wt.% of Al, less than 0.3wt.% of Fe, Ca, and less than 0.2wt.% of C, the silicon nitride powder can keep its good sintering properties and the physical properties of the sintered products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22596087A JPS6469506A (en) | 1987-09-09 | 1987-09-09 | Silicon nitride powder and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22596087A JPS6469506A (en) | 1987-09-09 | 1987-09-09 | Silicon nitride powder and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6469506A true JPS6469506A (en) | 1989-03-15 |
Family
ID=16837582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22596087A Pending JPS6469506A (en) | 1987-09-09 | 1987-09-09 | Silicon nitride powder and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6469506A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1031535A1 (en) * | 1999-02-23 | 2000-08-30 | dmc2 Degussa Metals Catalysts Cerdec AG | Process for the preparation of nitride/oxynitride-based yellow to red pigments |
| EP1031536A1 (en) * | 1999-02-23 | 2000-08-30 | dmc2 Degussa Metals Catalysts Cerdec AG | Tantalum(V) nitride pigment, process for its preparation and its application |
-
1987
- 1987-09-09 JP JP22596087A patent/JPS6469506A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1031535A1 (en) * | 1999-02-23 | 2000-08-30 | dmc2 Degussa Metals Catalysts Cerdec AG | Process for the preparation of nitride/oxynitride-based yellow to red pigments |
| EP1031536A1 (en) * | 1999-02-23 | 2000-08-30 | dmc2 Degussa Metals Catalysts Cerdec AG | Tantalum(V) nitride pigment, process for its preparation and its application |
| US6379449B1 (en) | 1999-02-23 | 2002-04-30 | Dmc2 Degussa Metals Catalysts Cerdec Ag | Process for the production of yellow to red pigments based on nitrides and oxidenitrides |
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