RATIONAL APPROXIMANT STRUCTURES AND PHASON STRAIN IN ICOSAHEDRAL QUASI-CRYSTALLINE PHASES

被引：36

作者：

MUKHOPADHYAY, NK ^{[1
]}

ISHIHARA, KN ^{[1
]}

RANGANATHAN, S ^{[1
]}

CHATTOPADHYAY, K ^{[1
]}

机构：

[1] KYOTO UNIV, DEPT MET SCI & TECHNOL, KYOTO 606, JAPAN

来源：

ACTA METALLURGICA ET MATERIALIA | 1991年 / 39卷 / 06期

关键词：

D O I：

10.1016/0956-7151(91)90203-D

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The degeneracy of the reciprocal space with respect to the icosahedral symmetry has been demonstrated by experimental diffraction patterns obtained from rapidly solidified Al-Mn-Si, Mg-Al-Ag, Mg-Al-Zn alloys. The distortion in diffraction patterns has been attributed to rational approximant (RA) structures. The distorted pattern obtained from Mg-Al-Zn system has been indexed based on 3/2 RA structure. The shift parameter has been quantified and shown to vary linearly with the pseudospace counterpart of the corresponding quasicrystalline reciprocal vector, which is the characteristic feature of phason strain.

引用

页码：1151 / 1159

页数：9

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