摘要
借助穆斯堡尔谱的测试方法,对不同铁基粉末触媒合成的工业金刚石中的包裹体进行了检测,结果表明,纯Fe触媒合成的金刚石晶体中的包裹体为α-Fe和Fe3C;Fe90Ni10和Fe80Ni20合成的金刚石晶体中的包裹体主要以FeNi合金和Fe3C形式存在,同时随着触媒中的Fe含量的降低,包裹体Fe3C的相对含量随之降低。另外,对包裹体的形成机制进行了分析。通过对包裹体的成分和形成机制的研究,提出了有效减少金刚石中包裹体的方法。
In this paper, the inclusions in diamond crystals synthesized using Fe-based cat- alysts were studied by Mossbauer spectra. The results show that the inclusions are mainly a-Fe and Fe3C using pure Fe powder catalysts, and while using Fe90Ni10 and Fe90Ni20o, the inelusions are mainly FeNi alloy and Fe3C. In addition, as the concentration of Fe in cata- lyst deereases, the concentration of Fe3C decreases in the inclusions of synthetie diamond. The forming meehanism of inclusions was studied, and the effective method to redueing inclusions was brought forward.
出处
《超硬材料工程》
CAS
2009年第6期1-3,共3页
Superhard Material Engineering
基金
吉林省科技厅项目(20080510)
内蒙古民族大学博士启动资金资助项目
