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金属学报  2003, Vol. 39 Issue (9): 952-954     
  论文 本期目录 | 过刊浏览 |
立方氮化硼的热膨胀性
陈骏 许晓伟
北京科技大学理化系; 北京 100083
引用本文:

陈骏; 许晓伟 . 立方氮化硼的热膨胀性[J]. 金属学报, 2003, 39(9): 952-954 .

全文: PDF(133 KB)  
摘要: 通过高温高压方法合成了目前制作c-BN工具的最常用的琥珀色c-BN磨料,利用超大功率高温X射线衍射仪精确测定 c-BN 的晶格常数,得出晶格常数随温度变化的关系,从而精确计算c-BN 的本征热膨胀系数.从室温到1000℃温度范围内,c-BN 的平均线膨胀系数α=4.92×10-6 / ℃, 平均体膨胀系数β=1.47×10-5 / ℃.
关键词 c-BN热膨胀性高温X射线衍射    
Key words
收稿日期: 2002-12-10     
ZTFLH:  O482.2  
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