文章编号：(1998)03-90-4
开孔隙对粉末触媒合成金刚石的影响
(中南工业大学粉末冶金国家重点实验室， 长沙 410083)
摘 要: 通过实验设计，对比研究了有、无表面开孔隙的Ni-Mn粉末触媒在六面顶压机上合成金刚石效果的差异。结果表明：Ni-Mn粉末触媒表面存在开孔隙，能提高合成腔体内触媒和石墨的接触面积和单位体积中金刚石的形核率，从而有利于高单产金刚石的合成；而粉末触媒表面的开孔隙存在与否，对合成金刚石的晶形无明显影响。
关键字: 金刚石 粉末触媒 开孔隙
EFFECTS OF OPEN PORE ON DIAMOND SYNTHESIS BY POWDER CATALYST
（Powder Metallurgical State Key Laboratory, Central South University of Technology, Changsha 410083）
Abstract:The effect of open-pore of Ni-Mn powder catalyst on diamond synthesis was studied. The results showed that open pore can rise the contact area of powder catalyst and graphite powder and increase the diamond nucleation as well, so open pore is useful for the high output of diamond; however open pore in Ni-Mn powder catalyst hasn't influence on the synthetic diamond shape .
Key words: diamond powder catalyst open pore
