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Synthesis of Cubic Boron Nitride by Decomposition of Magnesium Boron Nitride

 

作者: Satoshi Nakano,   Hiroyuki Ikawa,   Osamu Fukunaga,  

 

期刊: Journal of the American Ceramic Society  （WILEY Available online 1992）
卷期: Volume 75, issue 1  

页码: 240-243

 

ISSN:0002-7820

 

年代: 1992

 

DOI:10.1111/j.1151-2916.1992.tb05477.x

 

出版商: Blackwell Publishing Ltd

 

关键词: boron nitride;synthesis;magnesium;decomposition;pressure

 

数据来源: WILEY

 

摘要:

Cubic boron nitride (c‐BN) was synthesized by the decomposition of Mg3BN3under high pressure and high temperature. The minimum pressure forc‐BN synthesis was 4 GPa, which was 1 GPa lower than that of the conventional catalytic process. The decomposition of Mg3BN3was observed only when H2O was added. Therefore, the reaction was as follows: Mg3BN3+ 3H2O = 3MgO +c‐BN + 2NH3. Thec‐BN crystals obtained were tetrahedron in shape and about 10μm in

 

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