JPS5556005A - Raw material cubic system boron nitride powder and production thereof, sintered body of cubic system boron nitride and production thereof using said powder, and growing method for cubic system boron nitride - Google Patents
Raw material cubic system boron nitride powder and production thereof, sintered body of cubic system boron nitride and production thereof using said powder, and growing method for cubic system boron nitrideInfo
- Publication number
- JPS5556005A JPS5556005A JP12956478A JP12956478A JPS5556005A JP S5556005 A JPS5556005 A JP S5556005A JP 12956478 A JP12956478 A JP 12956478A JP 12956478 A JP12956478 A JP 12956478A JP S5556005 A JPS5556005 A JP S5556005A
- Authority
- JP
- Japan
- Prior art keywords
- boron nitride
- cubic system
- powder
- system boron
- raw material
- 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 easily produce a sintered body of hexagonal system boron nitride alone in a short time by sintering raw material cubic system boron nitride powder having a microstrain, as starting raw material, obtd. by applying mechanically striking energy.
CONSTITUTION: Raw material cubic system boron nitride powder 1 formed into a disk shape is covered with Ni foil and set on central protrusion 4 of lower punch 3 fixed into cylinder 2. Striking energy of 4 tons.meter or more is applied to powder 1 through upper punch 5 to produce a microstrain inducing no change in crystal external form and having crystal disorder or lattice disorder in the interior alone. Powder 1 having the microstrain is then sintered under a static press. above 55000 atm at above 1300°C. At this time, it is required to heat the starting raw material while applying the press.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12956478A JPS5556005A (en) | 1978-10-23 | 1978-10-23 | Raw material cubic system boron nitride powder and production thereof, sintered body of cubic system boron nitride and production thereof using said powder, and growing method for cubic system boron nitride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12956478A JPS5556005A (en) | 1978-10-23 | 1978-10-23 | Raw material cubic system boron nitride powder and production thereof, sintered body of cubic system boron nitride and production thereof using said powder, and growing method for cubic system boron nitride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5556005A true JPS5556005A (en) | 1980-04-24 |
Family
ID=15012598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12956478A Pending JPS5556005A (en) | 1978-10-23 | 1978-10-23 | Raw material cubic system boron nitride powder and production thereof, sintered body of cubic system boron nitride and production thereof using said powder, and growing method for cubic system boron nitride |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5556005A (en) |
-
1978
- 1978-10-23 JP JP12956478A patent/JPS5556005A/en active Pending
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