HIGH-ORDER PERIODIC APPROXIMANTS OF A DECAGONAL QUASI-CRYSTAL IN AL70NI15CO15

被引：38

作者：

EDAGAWA, K ^{[1
]}

SUZUKI, K ^{[1
]}

ICHIHARA, M ^{[1
]}

TAKEUCHI, S ^{[1
]}

SHIBUYA, T ^{[1
]}

机构：

[1] TOYO UNIV,FAC ENGN,KAWAGOE 350,JAPAN

来源：

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES | 1991年 / 64卷 / 05期

关键词：

D O I：

10.1080/13642819108217887

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two kinds of high-order periodic approximant phase of a decagonal quasicrystal have been found to form in a slowly cooled Al70Ni15Co15 alloy. For both of them, the two-dimensional decagonal symmetry, 10 mm, breaks down to one of its subgroups, 2 mm, in the quasi-periodic plane of the decagonal phase. One of them has periodicity along two mutually perpendicular twofold axes in the quasi-periodic plane of the decagonal phase with periods, 3.8 nm and 5.2 nm. The other is periodic along one of the twofold axes with a period of 6.2 nm, and it apparently maintains quasi-periodicity along the other twofold axis within the experimental resolution. Structural relations of the two phases to the decagonal phase are discussed in the framework of the projection scheme from a five-dimensional hyperspace.

引用

页码：629 / 638

页数：10

共 31 条

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