金刚石颗粒的性质包括粒度、形貌、包裹体、冲击强度、抗压强度、热稳定性等 ,这些性质决定了金刚石工具最终的使用性能。本研究用 9种GE公司的金刚石为样品 ,对金刚石的上述性质进行了系统的测量 ,考察了诸性质之间的相互关系。我们的测量结果表明 :金刚石的机械性质与晶粒的形貌以及晶体内部的杂质含量等性质之间存在着重要的相互关系 ;在同种晶粒粒度条件下 ,随着品级的升高 ,机械性质冲击强度、热稳定性逐渐升高 ;在晶体形貌方面如等轴度、粗糙度、椭圆度、晶粒度、浑圆度也随品质的升高逐渐改善 ;磁化物含量越低 ,金刚石的抗压强度、冲击强度以及热冲击强度越高 The properties of diamond particles include particle size, morphology, inclusions, impact strength, compressive strength, thermal stability, etc. These properties determine the final performance of diamond tools. In this study, diamonds from nine GE companies were used as samples to systematically measure the above properties of diamond and examined the interrelationships among the properties. Our measurement results show that there is an important correlation between the mechanical properties of diamond and the morphology of the grains and the content of impurities in the crystals. Under the same grain size conditions, as the grade increases, the mechanical The impact strength of the nature, the thermal stability of the gradual increase in the crystal morphology such as equiaxiality, roughness, ovality, grain size, roundness also gradually improve with the quality; the lower the content of magnetic, diamond Compressive strength, impact strength and thermal shock strength are higher