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arXiv 1111.2737cond-mat.mtrl-sci
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二元前过渡金属氮化物弹性响应的趋势

Trends in the elastic response of binary early transition metal nitrides

David Holec, Martin Friák, Jörg Neugebauer, Paul H. Mayrhofer

摘要:

出于对可用于选择具有针对特定应用要求的特性的材料的相干数据的日益增长的需求,我们研究了九种二元前过渡金属氮化物(ScN,TiN,VN,YN,ZrN,NbN,LaN,HfN和TaN)和AlN的弹性响应。特别是,单晶体的弹性常数,杨氏模量在不同的结晶方向,多晶值的剪切和杨氏模量,和弹性各向异性因子进行了计算。此外,我们提供了十个二元氮化物的三阶弹性常数的估计。

英文摘要:

Motivated by an increasing demand for coherent data that can be used for selecting materials with properties tailored for specific application requirements, we studied elastic response of nine binary early transition metal nitrides (ScN, TiN, VN, YN, ZrN, NbN, LaN, HfN, and TaN) and AlN. In particular, single crystal elastic constants, Young's modulus in different crystallographic directions, polycrystalline values of shear and Young's moduli, and the elastic anisotropy factor were calculated. Additionally, we provide estimates of the third order elastic constants for the ten binary nitrides.

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