ANOMALOUS X-RAY-SCATTERING STUDY OF AMORPHOUS AND ICOSAHEDRAL AL75CU15V10 ALLOYS

被引：26

作者：

MATSUBARA, E ^{[1
]}

WASEDA, Y ^{[1
]}

TSAI, AP ^{[1
]}

INOUE, A ^{[1
]}

MASUMOTO, T ^{[1
]}

机构：

[1] TOHOKU UNIV,INST MAT RES,SENDAI,MIYAGI 980,JAPAN

来源：

JOURNAL OF MATERIALS SCIENCE | 1990年 / 25卷 / 05期

关键词：

D O I：

10.1007/BF00638051

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Atomic structures of amorphous and icosahedral Al75Cu15V10 alloys were precisely examined by the ordinary and anomalous X-ray diffraction techniques. Some distinct features of intensity profiles, and coordination numbers and interatomic distances determined from the RDF analysis, indicate the presence of the icosahedral short-range ordering clusters in the as-quenched amorphous sample and other annealed amorphous samples, which are similar to the basic atomic structure constructing the icosahedral phase. The intensity differences of the amorphous and icosahedral phases obtained in the anomalous X-ray scattering (AXS) at the Cu K-absorption edge suggest that copper atoms are homogeneously dispersed in the icosahedral short-range ordering clusters. © 1990 Chapman and Hall Ltd.

引用

页码：2507 / 2512

页数：6

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[1] A SIMPLE CONSTRUCTION OF THE ALCULI QUASI-CRYSTALLINE STRUCTURE RELATED TO THE (AL,ZN)49MG32 CUBIC STRUCTURE TYPE [J].