本文研究了触媒对合成金刚石的组织及性能的影响。结果表明:触媒晶粒细小均匀,夹杂物较多时,有利于金刚石的形核,获得的细小金刚石较多,单次产量较高,但完整晶形所占比例较少,单颗粒抗压强度较低。而当触媒晶粒较粗大,为变形晶粒,夹杂物数量较少时,则得到与上述相反的结果。 This article studies the effect of catalyst on the microstructure and properties of synthetic diamond. The results show that when the catalyst grains are fine and uniform, inclusions are more beneficial to the nucleation of diamond, more fine diamonds are obtained and the single yield is higher, but the proportion of complete grains is less and the compressive strength of single grains is lower . When the catalyst grains are coarse, deformed grains and the number of inclusions is small, the opposite result is obtained.