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Title:
Elastic Behaviour and Microstructural Characteristics of Nd60Al10Fe20Co10 Bulk Metallic Glass Investigated by Ultrasonic Measurement under Pressure
Author: Zhang Z(张志); Wang RJ(王茹菊); Xia L(夏雷); Wei BC(魏炳忱); Zhao DQ(赵德乾); Pan MX(潘明祥)
Source: Journal of Physics-Condensed Matter
Issued Date: 2003
Volume: 15, Issue:25, Pages:4503-4509
Abstract: An ultrasonic pulse-echo method was used to measure the transit time of longitudinal and transverse (10 MHz) elastic waves in a Nd60Al10Fe20Co10 bulk metallic glass (BMG). The measurements were carried out under hydrostatic pressure up to 0.5 GPa at room temperature. On the basis of experimental data for the sound velocities and density, the elastic moduli and Debye temperature of the BMG were derived as a function of pressure. Murnaghan's equation of state is obtained. The normal behaviour of the positive pressure dependence of the ultrasonic velocities was observed for this glass. Moreover, the compression curve, the elastic constants, and the Debye temperature of the BMG are calculated on the basis of the similarity between their physical properties in the glassy state and those in corresponding crystalline state. These results confirm qualitatively the theoretical predictions concerning the features of the microstructure and interatomic bonding in the Nd60Al10Fe20Co10 BMG.
Language: 英语
Indexed Type: SCI
Corresponding Author: Wang, WH (reprint author), Chinese Acad Sci, Inst Phys, POB 603, Beijing 100080, Peoples R China.
DOI: 10.1088/0953-8984/15/25/317
DOC Type: Article
WOS Subject: Physics, Condensed Matter
WOS Subject Extended: Physics
WOS Keyword Plus: CONSTANTS ; ALLOY ; ANHARMONICITY ; TEMPERATURES ; PD40NI40P20 ; DEPENDENCE ; RELAXATION ; SOLIDS ; STATE ; GPA
WOS ID: WOS:000184297400024
ISSN: 0953-8984
Subject: 力学
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/17603
Appears in Collections:力学所知识产出(1956-2008)_期刊论文

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Recommended Citation:
Zhang Z,Wang RJ,Xia L,et al. Elastic Behaviour and Microstructural Characteristics of Nd60Al10Fe20Co10 Bulk Metallic Glass Investigated by Ultrasonic Measurement under Pressure[J]. Journal of Physics-Condensed Matter,2003-01-01,15(25):4503-4509.
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