JPS5795811A - Manufacture of cubic system boron nitride - Google Patents

Manufacture of cubic system boron nitride

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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
Application number
JP17087480A
Other languages
Japanese (ja)
Inventor
Masaru Ogata
Tsutomu Goto
Tetsuo Ikezawa
Goji Kajiura
Tomohisa Soeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP17087480A priority Critical patent/JPS5795811A/en
Publication of JPS5795811A publication Critical patent/JPS5795811A/en
Pending legal-status Critical Current

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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
JP17087480A 1980-12-05 1980-12-05 Manufacture of cubic system boron nitride Pending JPS5795811A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49130399A (en) * 1973-04-19 1974-12-13

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49130399A (en) * 1973-04-19 1974-12-13

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