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Density-functional study of Zr-based actinide alloys

机译:Zr基act系合金的密度泛函研究

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Density-functional formalism is applied to study the phase equilibria in the U-Zr system. The obtained ground-state properties of the gamma (bcc) and delta (02) phases are in good agreement with experimental data. The decomposition curve for the gamma-based U-Zr solutions is calculated. We argue that stabilization of the delta-UZr2 phase relative to the alpha-Zr (hcp) structure is due to an increase of the Zr d-band occupancy that occurs when U is alloyed with Zr.
机译:密度泛函形式学用于研究U-Zr系统中的相平衡。所获得的伽马(bcc)和δ(02)相的基态性质与实验数据非常吻合。计算基于γ的U-Zr解的分解曲线。我们认为,相对于alpha-Zr(hcp)结构的delta-UZr2相稳定是由于U与Zr合金化时Zr d波段占有率增加。

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