THERMODYNAMICS OF NITROGEN IN B2O3, B2O3-SIO2, AND B2O3-CAO SYSTEMS

被引：15
|
作者：
WAKASUGI, T
TSUKIHASHI, F
SANO, N
机构：
[1] Department of Metallurgy, The University of Tokyo, Bunkyo, Tokyo
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1991年 / 74卷 / 07期
关键词：
NITROGEN; BORIA; THERMODYNAMICS; OXYNITRIDE; GLASS;
D O I：
10.1111/j.1151-2916.1991.tb07154.x
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The BN solubilities for B2O3, B2O3-SiO2, and B2O3-CaO systems have been measured mainly at 1823 K using a graphite crucible. The capability of the systems for nitrogen dissolution is compared with that of silicate systems in terms of nitride capacity. The dependence of nitrogen solubility in molten CaO containing 15 mol% of B2O3 on oxygen and nitrogen partial pressures is also investigated. It has been found that there are two mechanisms for nitrogen dissolution, namely as chemically bonded nitrogen and as physically dissolved nitrogen gas.
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收藏
页码：1650 / 1653
页数：4
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