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首页> 外文期刊>Acta Physica Polonica >First-Principles Study of Structural, Elastic and Mechanical Properties of Zinc-Blende Boron Nitride (B3-BN)
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First-Principles Study of Structural, Elastic and Mechanical Properties of Zinc-Blende Boron Nitride (B3-BN)

机译:Zn-Blende氮化硼(B3-BN)的结构,弹性和力学性能的第一性原理研究

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摘要

First principles study of structural, elastic properties and anisotropy effect on the mechanical parameters of the zinc-blende boron nitride has been performed using the pseudopotential plane wave method based on density functional theory with the Teter and Pade exchange-correlation functional of the local density approximation. The equilibrium lattice constant, molecular and crystal densities, bond length, the independent elastic constants, bulk modulus and its pressure derivatives, compressibility, shear modulus, internal strain parameter, isotropy factor, compliance constants, the Debye temperature, Young's modulus, Poisson's ratio, the Lame constants and sound velocity for directions within the important crystallographic planes of this compound are obtained and analyzed in comparison with the available theoretical data reported in the literature.
机译:使用基于密度泛函理论的伪势平面波方法,结合局部密度近似的泰特和帕德交换相关函数,使用伪电势平面波方法进行了结构,弹性特性和各向异性对氮化硼氮化硼力学参数影响的第一性原理研究。 。平衡晶格常数,分子和晶体密度,键长,独立弹性常数,体积模量及其压力导数,可压缩性,剪切模量,内部应变参数,各向同性因子,顺应性常数,德拜温度,杨氏模量,泊松比,获得了该化合物重要晶体学平面内方向的莱姆常数和声速,并与文献报道的可用理论数据进行了比较。

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