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中文摘要：
利用FeNiMn55#粉末触媒在国产六面顶压机上进行工业金刚石单晶的合成,研究高温高压条件下（5.7GPa,1400～1600℃）,C-FeNiMn55#粉末触媒体系中金刚石单晶的生长特性。结果表明,C-FeNiMn55#系能够合成出六-八面体及八面体金刚石,但六面体金刚石生长区间较窄,不易生长。通过光学显微镜观测表明,合成出的金刚石单晶呈黄色,晶形完整,晶体内部有气泡产生。Mssbauer测试结果表明金刚石中包裹体的主要成分为Fe3C和FeNiMn55#合金。
英文摘要：
The industrial single crystal diamonds were synthesized using iron-based FeNiMn55# catalyst powder in China-made cubic multi-anvil high pressure apparatus. The growing characteristics of diamond in the system of graphite and iron-based catalyst at high pressure and high temperature （ 5. 7 GPa,1400-1600 ℃） were studied. It is indicated that synthesized diamonds with high crystalline quality and pale yellow color are mainly octahedral shape while cubo-octahedral crystals rarely appear due to the restrained growth region. The impurities in the crystals were investigated by mssbauer spectroscopy. The results show that the impurities in the diamond are mainly FeNiMn55# and iron carbide （ Fe3C）.
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