细颗粒cBN的高温高压合成研究  

Synthesis of fine cBN single crystal at HPHT

作　　者：郭玮[1] 郭伟力[1] 王琰弟[1] 徐会文[1] 商健[1] 马红安[1] 贾晓鹏[1] 

机构地区：[1]吉林大学超硬材料国家重点实验室,吉林长春130012

出　　处：《超硬材料工程》2010年第4期10-12,共3页Superhard Material Engineering

摘　　要：在高温高压条件下（压力为4.5-5.0GPa,温度为1300℃-1500℃）采用锂基多元触媒合成出了粒度较为均一、晶形完整的细颗粒cBN。实验发现,在触媒体系确定的条件下,合成细颗粒cBN的关键在于温度压力区间以及合成时间的控制,高压低温及较短的合成时间有利于细颗粒cBN的合成。In this paper,the fine cBN with uniformity granularity and integrated morphology was successfully synthesized in Li-based catalyst at HPHT（4.5-5.0GPa and 1300-1500℃）.The experimental data approved that the crucial factors of fine cBN single crystal formation were appropriate pressure,temperature and synthetic time in a certain catalyst system.The higher pressure,lower temperature and shorter synthetic time are benefit for fine cBN single crystal formation.

关 键 词：细颗粒cBN 完整晶形 合成条件 

分 类 号：TQ164[化学工程—高温制品工业]