Diffuse electron scattering determination of elastic constants of Al-Pd-Mn icosahedral quasicrystal

被引：1

作者：

Lei, JL

Wang, RH ^{[1
]}

Yin, JH

Duan, XF

机构：

[1] Wuhan Univ, Dept Phys, Wuhan 430072, Peoples R China

[2] Chinese Acad Sci, Beijing Lab Electron Microscopy, Beijing 100080, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2002年 / 342卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

quasicrystals; diffuse electron scattering; elastic constants determination; phason disorder;

D O I：

10.1016/S0925-8388(02)00247-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Quantitative diffuse electron scattering in the vicinity of some Bragg reflections has been measured for the first time on a single Al70.3Pd21.5Mn8.2 icosahedral quasicrystal in order to obtain information about elastic constants. The main contribution to the diffuse scattering comes from the phason disorder. The shape and the quantitative intensity distribution of diffuse scattering can be accounted for by considering only two phason elastic constants K-1 and K-2 with a ratio of K-2/K-1 = 0.50. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：326 / 329

页数：4

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