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高温高压下B4C合成金刚石的研究
引用本文:罗湘捷,丁立业.高温高压下B4C合成金刚石的研究[J].高压物理学报,1997,11(4):266-269.
作者姓名:罗湘捷  丁立业
作者单位:四川联合大学高温高压物理研究所,四川联合大学原子核科学与技术研究所
基金项目:日本国文部省科研费资助
摘    要: 压力为5.7~6.0 GPa及1 370~1 500 ℃温度范围内,B4C在Ni70Mn25Co5系统中,高压相变为金刚石。合成的金刚石为深黑色,含硼量大于1wt%。粒度为20 μm左右,晶形多为立方体与八面体的各种聚形。反应后的金属触媒中,存在Ni2B等硼化物;非金属残留物中,存在B13C2等高硼碳化物。

关 键 词:高温高压  碳化硼  NiMnCo合金  相变  金刚石
收稿时间:1997-03-31;

A STUDY ON THE DIAMOND SYNTHESIS BY B 4C UNDER HIGH TEMPERATURE AND HIGH PRESSURE
Luo Xiangjie,Ding Liye,Liu Qiang,Ye Li,Luo Bocheng.A STUDY ON THE DIAMOND SYNTHESIS BY B 4C UNDER HIGH TEMPERATURE AND HIGH PRESSURE[J].Chinese Journal of High Pressure Physics,1997,11(4):266-269.
Authors:Luo Xiangjie  Ding Liye  Liu Qiang  Ye Li  Luo Bocheng
Institution:Luo Xiangjie,Ding Liye,Liu Qiang,Ye Li,Luo Bocheng 1
Abstract:Diamond was synthesized by using B4C as the carbon source in the Ni70Mn25Co5-B4C system under 5.7~6.0 GPa and 1 370~1 500 ℃.This is the first example using pure B4C as the carbon source to synthesize diamonds, which is dark and contains more than 1wt% of boron. The synthesized diamond has a grain-size of about 20 μm, is mainly a combination of cubic and octahedral bodies. After reaction, Ni2B compounds are found to exist in the metallic catalyst left, and B13C2 compounds with rich boron in the non-metallic remainders.
Keywords:high  temperature  and  high  pressure  boron  carbide  Ni    70  Mn    25  Co  5  alloy    phase  transition  diamond  
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