Thermal expansion study of ordered and disordered Fe3Al: An effective approach for the determination of vibrational entropy

被引：69

作者：

Mukherjee, GD

Bansal, C

Chatterjee, A

机构：

[1] School of Physics, University of Hyderabad

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.76.1876

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Thermal expansion measurements have been performed on chemically disordered and D0(3) ordered Fe3Al alloy using the capacitance dilatometric method. A semiclassical model has been used to obtain the anharmonicity parameters and accurate values of the Debye and Einstein temperatures. An estimate of the vibrational entropy difference between the ordered and disordered phases of the alloy is also obtained using this approach.

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页码：1876 / 1879

页数：4

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