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本文从晶体结构方面说明了金刚石化学性质稳定的原因，介绍了提高金刚石工具性能所采用的三种常用方法：金刚石表面金属化、金属基体改性和工艺改变方法。这三种方法起作用的机理可解释为由于强碳化物元素的加入，使得内界面张力系数的降低和发生晶界反应。从而改善了界面结合。另外，本文还介绍了当前金刚石工具的研究主要集中于微量合金元素特别是稀土元素的加入，这可改善金刚石工具综合性能。
In this paper, the reasons for the stable chemical properties of diamond are described in terms of crystal structure. Three common methods for improving the performance of diamond tools are introduced: diamond surface metallization, metal matrix modification and process modification. The mechanism of these three methods can be explained as a result of the reduction of the interfacial tension coefficient and the grain boundary reaction due to the addition of the strong carbide elements. Thus improving the interface combination. In addition, this article also introduced the current research of diamond tools mainly focused on the addition of trace alloying elements, especially rare earth elements, which can improve the overall performance of diamond tools.