采用基于密度泛函理论(DFT)的第一性原理对过渡金属硼化物M3B2(M=E Nb,Ta)的稳定性、化学键、弹性常数、硬度以及德拜温度进行计算和预测.这些硼化物的结构已经经过优化,得到的晶格常数与实验值相符.通过得到的这些硼化物的结合能和生成焓,确定了这些硼化物具有稳定的结构.通过计算,还得到了M3B2(M=V,Nb,Ta)的弹性常数、相关模量及泊松比.
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