A CONTRIBUTION TO THE CRYSTALLOCHEMISTRY OF BORON-NITRIDE

被引:45
作者
BROZEK, V
HUBACEK, M
机构
[1] Department of Inorganic Chemistry, Prague Institute of Chemical Technology
关键词
D O I
10.1016/0022-4596(92)90161-N
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A reaction mechanism of formation and growth of hexagonal boron nitride planar macromoleukules during reductive nitridation of oxidic boron compounds has been proposed. This model was verified by a comparison of computed values of oxygen contents with experimental results and a good agreement has been found. The growth of boron nitride crystallites is suggested to be of a condensation character and the termination of it is seen as a reaction of hydroxyllic and hydrogen radicals in periphery areas of the macromolecules. By this approach an occurrence of a certain amount of oxygen in samples of hexagonal boron nitride treated even at high temperatures can be elucidated. © 1992.
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页码:120 / 129
页数:10
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