JPS577809A - Manufacture of beta-type silicon carbide powder - Google Patents
Manufacture of beta-type silicon carbide powderInfo
- Publication number
- JPS577809A JPS577809A JP8198480A JP8198480A JPS577809A JP S577809 A JPS577809 A JP S577809A JP 8198480 A JP8198480 A JP 8198480A JP 8198480 A JP8198480 A JP 8198480A JP S577809 A JPS577809 A JP S577809A
- Authority
- JP
- Japan
- Prior art keywords
- silicon carbide
- manufacture
- oxide
- powder
- type silicon
- 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
Landscapes
- Carbon And Carbon Compounds (AREA)
- Catalysts (AREA)
Abstract
PURPOSE: To manufacture β-type silicon carbide in a high yield by adding a prescribed percentage of Fe, Co, Ni or oxide thereof to silicon oxide and calcining them.
CONSTITUTION: To silicon oxide powder is added powder of Fe, Co, Ni or oxide thereof such as ferric oxide by 0.5W3mol% as Fe, Co or Ni, and this mixed powder is wet mixed with a ball mill and dried. The dried mixed powder is put into a carbon tube and heated to 1,500°C in a vacuum furnace to manufacture silicon carbide. The product is then roasted at 650°C in air to remove excess carbon, and by further treating the product with a strong acid such as hydrofluoric acid, unreacted silicon oxide and other impurities are removed by dissolution to manufacture the desired β-type silicon carbide powder. This β-type silicon carbide is 2W3 times as high as silicon carbide contg. no said additive in yield.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55081984A JPS5823327B2 (en) | 1980-06-16 | 1980-06-16 | Method for producing β-type silicon carbide powder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55081984A JPS5823327B2 (en) | 1980-06-16 | 1980-06-16 | Method for producing β-type silicon carbide powder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS577809A true JPS577809A (en) | 1982-01-16 |
JPS5823327B2 JPS5823327B2 (en) | 1983-05-14 |
Family
ID=13761736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55081984A Expired JPS5823327B2 (en) | 1980-06-16 | 1980-06-16 | Method for producing β-type silicon carbide powder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5823327B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4482936A (en) * | 1982-03-31 | 1984-11-13 | Mitsubishi Denki Kabushiki Kaisha | Drawer type enclosed switchboard with automatic grounding device |
EP0193970A2 (en) * | 1985-03-07 | 1986-09-10 | Elektroschmelzwerk Kempten GmbH | Method of producing sinterable powders of silicon carbide and/or boron carbide |
EP0222573A2 (en) * | 1985-11-05 | 1987-05-20 | Washington Mills Electro Minerals Corporation | Production of silicon carbide with automatic separation of a high grade fraction |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6153628A (en) * | 1984-08-24 | 1986-03-17 | Sakata Shokai Ltd | Setting method of exposure condition |
-
1980
- 1980-06-16 JP JP55081984A patent/JPS5823327B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4482936A (en) * | 1982-03-31 | 1984-11-13 | Mitsubishi Denki Kabushiki Kaisha | Drawer type enclosed switchboard with automatic grounding device |
EP0193970A2 (en) * | 1985-03-07 | 1986-09-10 | Elektroschmelzwerk Kempten GmbH | Method of producing sinterable powders of silicon carbide and/or boron carbide |
EP0193970A3 (en) * | 1985-03-07 | 1987-12-16 | Elektroschmelzwerk Kempten GmbH | Method of producing sinterable powders of silicon carbide and/or boron carbide |
EP0222573A2 (en) * | 1985-11-05 | 1987-05-20 | Washington Mills Electro Minerals Corporation | Production of silicon carbide with automatic separation of a high grade fraction |
Also Published As
Publication number | Publication date |
---|---|
JPS5823327B2 (en) | 1983-05-14 |
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