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MgO在Mg-hBN体系中对合成cBN晶体的影响
引用本文:望贤成,张铁臣,贾晓鹏,邹广田.MgO在Mg-hBN体系中对合成cBN晶体的影响[J].高压物理学报,2002,16(3):227-230.
作者姓名:望贤成  张铁臣  贾晓鹏  邹广田
作者单位:吉林大学超硬材料国家重点实验室,吉林长春,130023
摘    要: 以金属镁粉为触媒,以六角氮化硼为原料,其中加入适量比例的氧化镁,在国产六面顶压机上,在约5.0 GPa压力、1 500~1 800 K温度条件下,合成出了颜色均匀、晶形完整的黄色立方氮化硼单晶体。实验结果表明,在Mg-hBN体系中,氧化镁对合成cBN晶体的颜色及合成温度有很大的影响。

关 键 词:氧化镁  合成条件  黄色cBN
文章编号:1000-5773(2002)03-0227-04
收稿时间:2002-01-17;
修稿时间:2002年1月17日

THE EFFECT OF MgO ON GROWTH OF cBN IN THE Mg-hBN SYSTEM
WANG Xian cheng,ZHANG Tie chen,JIA Xiao peng,ZOU Guang tian.THE EFFECT OF MgO ON GROWTH OF cBN IN THE Mg-hBN SYSTEM[J].Chinese Journal of High Pressure Physics,2002,16(3):227-230.
Authors:WANG Xian cheng  ZHANG Tie chen  JIA Xiao peng  ZOU Guang tian
Institution:National Laboratory of Superhard Materials, Jilin University, Changchun 130023, China
Abstract:In this paper, we report a method with which yellow cBN crystals are synthesized successfully. hBN is used as raw material and magnesium powder as catalyzer. MgO is added appropriately at high pressure (≈5.0 GPa) and high temperature (1 500~1 800 K) with cubic anvil high-pressure apparatus. The synthesized crystals are of perfect shape and uniform color. The synthesis temperature of the cBN is reduced due to the existence of MgO.
Keywords:magnesium oxide  synthesize  yellow cBN
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