在国产ＤＳ６×８００Ａ型六面顶压机上，对比研究了含与不含固溶碳的Ｎｉ－Ｍｎ粉末触媒，采用直热式静压触媒法合成金刚石的差异。实验表明：Ｎｉ－Ｍｎ粉末触媒中固溶碳的存在，不仅可以提高金刚石的合成单产、细化金刚石晶粒，而且在同工艺条件下，能得到晶形完整度较高的金刚石单晶 In the domestic DS6 × 800A six-sided top press, the differences of diamonds synthesized by direct thermal static pressure catalyst method were compared between Ni-Mn powders with and without solid-solution carbon. The experimental results show that the existence of solid solution carbon in Ni-Mn powder catalyst can not only increase the synthetic yield of diamond and refine the diamond grains, but also obtain the diamond crystal with higher degree of crystal form integrity under the same process conditions