Effect the Actual Structure of Boron and Catalytic Additions on Boron Nitride Synthesis

被引：0
|
作者：
Alexander V. Kurdyumov
机构：
[1] Institute for Problems of Materials Science,National Academy of Sciences of Ukraine
来源：
Powder Metallurgy and Metal Ceramics | 2003年 / 42卷
关键词：
boron; nitrogen; synthesis; boron nitride; catalytic addition; amorphizing effect;
D O I：
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中图分类号：
学科分类号：
摘要：
The bahavior of boron with different degrees of purity, fineness, and crystal structure perfection during nitriding at high temperature is studied by electron microscopy, x-ray diffraction, and chemical analysis. The effect of additives (Li2CO3, H3BO3, and NH4Cl) on boron nitride synthesis is studied. A marked reduction is established in the temperature for forming a highly-ordered boron nitride structure on introducing additives. The chemistry of the amorphizing effect of ammonium chloride on the crystal structure of boron is suggested.
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页码：189 / 194
页数：5
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