JPS5795811A - Manufacture of cubic system boron nitride - Google Patents
Manufacture of cubic system boron nitrideInfo
- Publication number
- JPS5795811A JPS5795811A JP17087480A JP17087480A JPS5795811A JP S5795811 A JPS5795811 A JP S5795811A JP 17087480 A JP17087480 A JP 17087480A JP 17087480 A JP17087480 A JP 17087480A JP S5795811 A JPS5795811 A JP S5795811A
- Authority
- JP
- Japan
- Prior art keywords
- aln
- hexagonal system
- 000atm
- heated
- manufacture
- 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
- Catalysts (AREA)
Abstract
PURPOSE: To obtain a product at lower pressure and temp. in a higher yield by using Li3N.AlN as a catalytic additive when cubic system BN is synthesized by treating hexagonal system BN at superhigh pressure and high temp.
CONSTITUTION: To hexagonal system BN is added ≥1wt% Li3N.AlN, and they are pressurized to ≥40,000atm and heated to ≥1,150°C at the same time. After cooling and pressure relieving, the product is taken out. Equimolar amounts of Li3N powder and AlN powder are mixed, cold compressed, and heated to about 800°C in an N2 atmosphere. By this heating a sudded exothermic reaction is caused to give composite compound Li3N.AlN. When the blending ratio between hexagonal system BN and Li3N.AlN is regulated to 3:1 by wt., and the synthesizing conditions are 55,000atm and 1,600°C, the yield reaches 100%.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17087480A JPS5795811A (en) | 1980-12-05 | 1980-12-05 | Manufacture of cubic system boron nitride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17087480A JPS5795811A (en) | 1980-12-05 | 1980-12-05 | Manufacture of cubic system boron nitride |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5795811A true JPS5795811A (en) | 1982-06-14 |
Family
ID=15912909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17087480A Pending JPS5795811A (en) | 1980-12-05 | 1980-12-05 | Manufacture of cubic system boron nitride |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5795811A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49130399A (en) * | 1973-04-19 | 1974-12-13 |
-
1980
- 1980-12-05 JP JP17087480A patent/JPS5795811A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49130399A (en) * | 1973-04-19 | 1974-12-13 |
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