Neutron diffraction study on gamma<->alpha phase transition in Ce_(0.9)Th_(0.1) alloy

I.-K. Jeong; T.W. Darling; R.H. Heffner

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Neutron diffraction study on gamma<->alpha phase transition in Ce_(0.9)Th_(0.1) alloy

机译：Ce_（0.9）Th_（0.1）合金中γ-α相变的中子衍射研究

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Comprehensive neutron diffraction measurements were performed to study the isostructural gamma<->alpha phase transition in Ce_(0.9)Th_(0.1) alloy. Using Rietveld refinements, we obtained lattice and thermal parameters as a function of temperature. From the temperature slope of the thermal parameters, we determined Debye temperatures for the y phase and the alpha phase, respectively. This result implies that the vibrational entropy change is not significant at the gamma<->alpha transition, contrary to that from elemental Cerium [I.-K. Jeong, T.W. Darling, Mi. Graf et al., Phys. Rev. Lett. 92(2004) p. 105702].

机译：进行了全面的中子衍射测量，以研究Ce_（0.9）Th_（0.1）合金的同构γ-α相变。使用Rietveld改进，我们获得了晶格和热参数随温度的变化。根据热参数的温度斜率，我们分别确定了y相和α相的德拜温度。该结果暗示，与来自元素铈[I.-K]的振动熵变化相比，在γ-α跃迁处的振动熵变化不明显。郑贞德亲爱的，咪。 Graf等，Phys。牧师92（2004） 105702]。

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《Philosophical Magazine Letters》 |2008年第8期|共7页
作者
I.-K. Jeong; T.W. Darling; R.H. Heffner;
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正文语种 eng
中图分类物理学;
关键词
gammalt; -gt; alpha phase transition; neutron diffraction; Debye temperature; vibrational entropy;

机译：γ-α相变;中子衍射;德拜温度;振动熵;

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1. Neutron diffraction study on gamma<->alpha phase transition in Ce_(0.9)Th_(0.1) alloy [J] . I.-K. Jeong, T.W. Darling, R.H. Heffner Philosophical Magazine Letters . 2008,第8期

机译：Ce_（0.9）Th_（0.1）合金中γ-α相变的中子衍射研究
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Neutron diffraction study on gamma<->alpha phase transition in Ce_(0.9)Th_(0.1) alloy

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