JPS57175717A - Preparation of high purity boron carbide powder - Google Patents

Preparation of high purity boron carbide powder

Info

Publication number
JPS57175717A
JPS57175717A JP56034613A JP3461381A JPS57175717A JP S57175717 A JPS57175717 A JP S57175717A JP 56034613 A JP56034613 A JP 56034613A JP 3461381 A JP3461381 A JP 3461381A JP S57175717 A JPS57175717 A JP S57175717A
Authority
JP
Japan
Prior art keywords
high purity
boron carbide
reaction
purity boron
carbide powder
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
JP56034613A
Other languages
Japanese (ja)
Other versions
JPS6358767B2 (en
Inventor
Kiichi Komada
Susumu Tojo
Minoru Nakazato
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.)
Mitsubishi Metal Corp
Original Assignee
Mitsubishi Metal Corp
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 Mitsubishi Metal Corp filed Critical Mitsubishi Metal Corp
Priority to JP56034613A priority Critical patent/JPS57175717A/en
Publication of JPS57175717A publication Critical patent/JPS57175717A/en
Publication of JPS6358767B2 publication Critical patent/JPS6358767B2/ja
Granted legal-status Critical Current

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  • Carbon And Carbon Compounds (AREA)

Abstract

PURPOSE: To prepare high purity boron carbide powder free from isolated C, by preheating a powdery mixture of a boron compound, Mg, etc., and C or a C- source, subjecting to the reduction reaction at a specific temperature to remove MgO, etc., and heating at a higher temperature.
CONSTITUTION: The starting raw material mixture composed of boric acid and/ or boron oxide, Mg and/or Ca, and C or a C-source, is dehydrated by preheating below the temperature to start the reduction reaction, i.e. at 300W600°C. After the heat treatment, the powdery mixture is subjected to the reduction neaction at 700W1,200°C in an inert or reductive atmosphere. The MgO or CaO existing in the reaction mixure as a contaminant is dissolved and removed by leaching with hyrochloric acid or sulfuric acid, and the mixture is heated in an inert or reductive atmosphere at 1,300W2,000°C to complete the carbide formation reaction. A high purity boron carbide can be prepared by this process.
COPYRIGHT: (C)1982,JPO&Japio
JP56034613A 1981-03-12 1981-03-12 Preparation of high purity boron carbide powder Granted JPS57175717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56034613A JPS57175717A (en) 1981-03-12 1981-03-12 Preparation of high purity boron carbide powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56034613A JPS57175717A (en) 1981-03-12 1981-03-12 Preparation of high purity boron carbide powder

Publications (2)

Publication Number Publication Date
JPS57175717A true JPS57175717A (en) 1982-10-28
JPS6358767B2 JPS6358767B2 (en) 1988-11-16

Family

ID=12419217

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56034613A Granted JPS57175717A (en) 1981-03-12 1981-03-12 Preparation of high purity boron carbide powder

Country Status (1)

Country Link
JP (1) JPS57175717A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4804525A (en) * 1986-04-14 1989-02-14 The Dow Chemical Company Producing boron carbide
WO2009070131A2 (en) * 2007-11-30 2009-06-04 Istanbul Teknik Universitesi Rektorlugu Boron carbide production method
WO2015022202A1 (en) * 2013-08-14 2015-02-19 Ecole Polytechnique Boron carbide with increased mechanical stability and production method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4804525A (en) * 1986-04-14 1989-02-14 The Dow Chemical Company Producing boron carbide
WO2009070131A2 (en) * 2007-11-30 2009-06-04 Istanbul Teknik Universitesi Rektorlugu Boron carbide production method
WO2009070131A3 (en) * 2007-11-30 2010-09-23 Istanbul Teknik Universitesi Rektorlugu Boron carbide production method
WO2015022202A1 (en) * 2013-08-14 2015-02-19 Ecole Polytechnique Boron carbide with increased mechanical stability and production method
FR3009720A1 (en) * 2013-08-14 2015-02-20 Ecole Polytech BORON CARBIDE WITH INCREASED MECHANICAL STABILITY AND METHOD OF MANUFACTURE

Also Published As

Publication number Publication date
JPS6358767B2 (en) 1988-11-16

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