JPS5475500A - Production of double carbide of molybdenum and tungsten - Google Patents
Production of double carbide of molybdenum and tungstenInfo
- Publication number
- JPS5475500A JPS5475500A JP14317677A JP14317677A JPS5475500A JP S5475500 A JPS5475500 A JP S5475500A JP 14317677 A JP14317677 A JP 14317677A JP 14317677 A JP14317677 A JP 14317677A JP S5475500 A JPS5475500 A JP S5475500A
- Authority
- JP
- Japan
- Prior art keywords
- carbide
- atmosphere
- oxides
- double carbide
- amt
- 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
- Ceramic Products (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
PURPOSE: To obtain a double carbide which is a hard metal whose WC moiety is replaced by MoC, by adding a necessary amt. of C to finely mixed Mo and W oxides; pelletizing them; and removing oxygen by reaction in an inert atmosphere, followed by secondary heating in a reducing atmosphere.
CONSTITUTION: Mo and W oxides are coprecipitated from an ammonium soln. of Mo and W, roasted, and uniformly mixed to below 0.2 μ. C is added to the mixed powder in an amt. required to perform reduction and carbide formation, and they are pelletized and subjected to rapid reduction in an inert atmosphere at a high temp. about 800°C with stirring. The resulting primary carbide is then reheated at above 1300°C in an atmosphere of H2 to obtain a solid soln. of double carbide based on (Mo.W)C, dissolved carbide of Mo and W, and contg. a cpd. of Mo(C,N, O).
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14317677A JPS5475500A (en) | 1977-11-29 | 1977-11-29 | Production of double carbide of molybdenum and tungsten |
| US05/927,903 US4216034A (en) | 1977-07-27 | 1978-07-25 | Process for the production of a hard solid solution |
| CA000308177A CA1117556A (en) | 1977-07-27 | 1978-07-26 | Process for the production of a hard solid solution |
| DE19782833016 DE2833016A1 (en) | 1977-07-27 | 1978-07-27 | Mixed carbide prodn. - by mixing oxide or soln. of metal component and carbon and reducing mixt. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14317677A JPS5475500A (en) | 1977-11-29 | 1977-11-29 | Production of double carbide of molybdenum and tungsten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5475500A true JPS5475500A (en) | 1979-06-16 |
| JPS6154727B2 JPS6154727B2 (en) | 1986-11-25 |
Family
ID=15332669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14317677A Granted JPS5475500A (en) | 1977-07-27 | 1977-11-29 | Production of double carbide of molybdenum and tungsten |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5475500A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976902A (en) * | 2020-01-02 | 2020-04-10 | 崇义章源钨业股份有限公司 | Tungsten powder and preparation method and application thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991001269A1 (en) * | 1989-07-20 | 1991-02-07 | Institut Strukturnoi Makrokinetiki Akademii Nauk Sssr | Method for obtaining molybdenum carbide |
-
1977
- 1977-11-29 JP JP14317677A patent/JPS5475500A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976902A (en) * | 2020-01-02 | 2020-04-10 | 崇义章源钨业股份有限公司 | Tungsten powder and preparation method and application thereof |
| CN110976902B (en) * | 2020-01-02 | 2023-04-18 | 崇义章源钨业股份有限公司 | Tungsten powder and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6154727B2 (en) | 1986-11-25 |
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