Abstract

We use four different methods for testing the hypothesis of putative numerical equivalence between the hardness of diamond and the critical pressure of diamond metallization. In modeling crystal distortion by uniaxial compression, the initial calculations of external pressure give the lower limit for the critical pressure: P_m(1) = 213 GPa. This value is compared to semi-empirical findings obtained within Penn’s model for dielectrics, which is P_m(2) = 187.67 GPa. An experimental value for the Vickers hardness, which is H_V(1) = 92 GPa, is compared using a semi-empirical approach. A theoretical value for diamond’s hardness calculated within the Penn’s model is H_V(2) = 92.22 GPa.

中文翻译：

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室温下金刚石的压力诱导金属化

摘要

我们使用四种不同的方法来检验金刚石的硬度与金刚石金属化的临界压力之间的假定数值等效性的假设。在通过单轴压缩对晶体变形进行建模时，外部压力的初始计算给出了临界压力的下限：P _m（1）= 213 GPa。将该值与在Penn的电介质模型中获得的半经验结果进行比较，该模型为P _m（2）= 187.67 GPa。使用半经验方法比较了维氏硬度的实验值H _V（1）= 92 GPa。在Penn模型中计算出的钻石硬度的理论值为H _V（2）= 92.22 GPa。