Computations of ultrasonic parameters of lanthanide metals Ti, Zr and Hf

被引：4
|
作者：
Yadawa, Pramod Kumar [1 ]
Pandey, Dharmendra Kumar [2 ]
Singh, Devraj [1 ]
Yadav, Raja Ram [3 ]
Mishra, Giridhar [3 ]
机构：
[1] AMITY Sch Engn & Technol, Dept Appl Phys, New Delhi 110061, India
[2] PPN PG Coll, Dept Phys, Kanpur 208001, Uttar Pradesh, India
[3] Univ Allahabad, Dept Phys, Allahabad 211002, Uttar Pradesh, India
来源：
TURKISH JOURNAL OF PHYSICS | 2010年 / 34卷 / 01期
关键词：
Lanthanide metals; elastic properties; thermal conductivity; ultrasonic properties;
D O I：
10.3906/fiz-0902-7
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The ultrasonic properties in the hexagonal structured lanthanide metals Ti, Zr and Hf have been studied at room temperature. The higher order elastic constants have been calculated for these metals using Lennard-Jones Potential for evaluating orientation-dependent ultrasonic properties. An anomalous behaviour in orientation dependent velocity is obtained, which is due to the combined effect of second order elastic constants and density. The achieved ultrasonic properties are compared with known physical parameters to differentiate them from third group nitrides/laves phase compounds.
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页码：23 / 31
页数：9
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