JPS5345700A - Production of cubic-system boron nitride - Google Patents

Production of cubic-system boron nitride

Info

Publication number
JPS5345700A
JPS5345700A JP12032376A JP12032376A JPS5345700A JP S5345700 A JPS5345700 A JP S5345700A JP 12032376 A JP12032376 A JP 12032376A JP 12032376 A JP12032376 A JP 12032376A JP S5345700 A JPS5345700 A JP S5345700A
Authority
JP
Japan
Prior art keywords
cubic
production
boron nitride
system boron
abrasives
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
Application number
JP12032376A
Other languages
Japanese (ja)
Other versions
JPS5927726B2 (en
Inventor
Toshio Kobayashi
Kenzo Susa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12032376A priority Critical patent/JPS5927726B2/en
Publication of JPS5345700A publication Critical patent/JPS5345700A/en
Publication of JPS5927726B2 publication Critical patent/JPS5927726B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Catalysts (AREA)
  • Ceramic Products (AREA)

Abstract

PURPOSE: To lower pressure and temperature and to obtain the object having a small grain size and high purity by using ammonium halide as a catalyst, in producing cubic-system BN useful as cutting material, abrasives, abrasion-resisting material, etc., by pressurizing and heating hexagonal-system BN.
COPYRIGHT: (C)1978,JPO&Japio
JP12032376A 1976-10-08 1976-10-08 Manufacturing method of cubic boron nitride Expired JPS5927726B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12032376A JPS5927726B2 (en) 1976-10-08 1976-10-08 Manufacturing method of cubic boron nitride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12032376A JPS5927726B2 (en) 1976-10-08 1976-10-08 Manufacturing method of cubic boron nitride

Publications (2)

Publication Number Publication Date
JPS5345700A true JPS5345700A (en) 1978-04-24
JPS5927726B2 JPS5927726B2 (en) 1984-07-07

Family

ID=14783398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12032376A Expired JPS5927726B2 (en) 1976-10-08 1976-10-08 Manufacturing method of cubic boron nitride

Country Status (1)

Country Link
JP (1) JPS5927726B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54148199A (en) * 1978-05-12 1979-11-20 Hitachi Ltd Production of cubic boron nitride fine powder
JPH0581648U (en) * 1992-04-01 1993-11-05 グラフテック株式会社 Recording device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54148199A (en) * 1978-05-12 1979-11-20 Hitachi Ltd Production of cubic boron nitride fine powder
JPH0581648U (en) * 1992-04-01 1993-11-05 グラフテック株式会社 Recording device

Also Published As

Publication number Publication date
JPS5927726B2 (en) 1984-07-07

Similar Documents

Publication Publication Date Title
JPS53133600A (en) Production of silicon nitride
JPS5350099A (en) Production of titanium carbide
JPS51125035A (en) New process for preparing 0-hydroxybenzylalcohols
JPS5422323A (en) Preparation of urea for industrial uses
JPS51146482A (en) Process for preparing n1-(2- tetrahydrofuryl)-5-fluorouracil
JPS53102900A (en) Preparation of cubic bn
JPS51128700A (en) Poly-crystalline boron nitride of high pressure phase
JPS5331689A (en) Synthesis of silatrane derivatives
JPS51138607A (en) Process for preparing neopentylglycol
JPS5229684A (en) Cutting tool holder
JPS52129700A (en) Press moldig method for raw material for synthesis of cubic system boron nitride
JPS5239599A (en) Production of hexagonal boron nitride
JPS51124700A (en) Method of producing cubic system boron nitride
JPS5211200A (en) Production of cubic boron nitride
JPS54148199A (en) Production of cubic boron nitride fine powder
JPS5293711A (en) Preparation of unsaturated amide
JPS52142389A (en) Cubic crystalline boron nitride grinding member and process for preparing the same
JPS53132530A (en) Preparation of p-iodoaniline
JPS5295615A (en) Preparation of phenylenediamine
JPS51112495A (en) Process for activating stabilized raney nickel catalysts
JPS53289A (en) Preparation of alkyletherated amino resin
JPS5412312A (en) Preparation of ketazine
JPS5251492A (en) A process for preparing tackifiers
JPS5345609A (en) Manufacture of high speed steel ingot from powdery material
JPS52102809A (en) Superhard tool material