铁基触媒合成工业金刚石中包裹体研究  

Study on inclusion in diamond crystal synthesized using Fe-based catalyst

作　　者：秦杰明[1] 

机构地区：[1]内蒙古民族大学,内蒙古通辽028043

出　　处：《超硬材料工程》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

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.

关 键 词：穆斯堡尔谱 金刚石合成 包裹体 Fe基触媒 

分 类 号：TQ164[化学工程—高温制品工业]