JPS57175717A - Preparation of high purity boron carbide powder - Google Patents
Preparation of high purity boron carbide powderInfo
- 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
Links
Landscapes
- 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
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)
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 |
-
1981
- 1981-03-12 JP JP56034613A patent/JPS57175717A/en active Granted
Cited By (5)
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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