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arXiv 1206.7035cond-mat.mtrl-sci
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Zr-Nb合金结构性质的从头计算

Ab-initio calculations for structural properties of Zr-Nb alloys

Vasyl O. Kharchenko, Dmitrii O. Kharchenko

摘要:

在零温条件下,对不同铌浓度下Zr-Nb合金的结构性质进行了从头算计算。不同的情况下,Zr-Nb合金与具有BCC和HCP结构的晶胞被认为是。得到了晶格常数的最佳值。确定了零温下结构转变HCP \rightarrow BCC对应的铌浓度临界值。分别研究了铌浓度为12.5%和25%的HCP和BCC两种结构的电子态密度。

英文摘要:

Ab-initio calculations for the structural properties of Zr-Nb alloys at different values of the niobium concentration are done at zero temperature. Different cases for Zr-Nb alloys with unit cells having BCC and HCP structures are considered. Optimal values of the lattice constants are obtained. Critical value for the niobium concentration corresponding to the structural transformation HCP \rightarrow BCC at zero temperature is determined. Electronic densities of states for two different structures with niobium concentrations 12.5% and 25% having HCP and BCC structures, accordingly, are studied.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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