Icosahedral clusters, icosaheral order and stability of quasicrystals - a view of metallurgy

被引：115

作者：

Tsai, An Pang ^{[1
,2
]}

机构：

[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[2] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

来源：

SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS | 2008年 / 9卷 / 01期

关键词：

stable quasicrystal; isodahedral cluster; valence concentration; phason disorder; icosahedral order;

D O I：

10.1088/1468-6996/9/1/013008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We review the stability of various icosahedral quasicrystals ( iQc) from a metallurgical viewpoint. The stability of stable iQcs is well interpreted in terms of Hume-Rothery rules, i.e. atomic size factor and valence electron concentration, e/a. For metastable iQcs, we discuss the role of phason disorder introduced by rapid solidification, in structural stability and its interplay with chemical order and composition.

引用

页数：20

共 73 条

[1] Multiscale modelling of size effect in fcc crystals: discrete dislocation dynamics and dislocation-based gradient plasticity [J].