含硼条形金刚石的生成与成因探讨

Experiments of Needle-Like Diamond Synthesis and Its Formation Mechanism

Institute of High Temperautre and High Pressure Physics, Sichuan Union University, Chengdu 610065, China

摘要: 在1 470 ℃、5.9 GPa的高温高压条件下，由Fe55Ni29Co16+B4C体系合成出了十分规则的条形金刚石，这在人工合成金刚石实验中是少见的。并与Ni70Mn25Co5+B4C体系中的情形作了比较，探讨了条形金刚石的形成原因，其分析为获得实用性的条形金刚石提供了可能的途径。
- Fe55Ni29Co16+B4C体系 /
- 条形金刚石 /
- 形成原因 /
- 高温高压
Abstract: The regular needle-like diamond were synthesized in the FeFe55Ni29Co16+B4C system at high temperature and high pressure conditions of 1 470 ℃ and 5.9 GPa, which are seldom seen in the experiments of diamond synthesis. The Fe55Ni29Co16+B4C system is compared with the Ni70Mn25Co5+B4C system and the cause of the formation of needle-like diamond is discussed in this paper. The theoretical analyses in the paper provide a possible approach for synthesizing needle-like diamond for practical use.
- Fe55Ni29Co16+B4C system /
- needle-like diamond /
- formation mechanism /
- high temperature and high pressure.