INTERFACE STRUCTURE BETWEEN DECAGONAL AND ICOSAHEDRAL QUASI-CRYSTALS IN AL-PD-MN ALLOY

被引：15
作者：
SUN, W
HIRAGA, K
机构：
[1] Institute for Materials Research, Tohoku University, Aoba-Ku Sendai, 980
来源：
PHILOSOPHICAL MAGAZINE LETTERS | 1993年 / 67卷 / 03期
关键词：
D O I：
10.1080/09500839308240924
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The decagonal (D) phase was formed in a melt-spun Al70Pd20Mn10 ribbon after annealing at 800-degrees-C, and its interface to the icosahedral (I) phase was examined by conventional and high-resolution electron microscopy. The results show that growth interface of the D-phase is characterized by a stepped structure constructed of interfacial facets and ledges. The interfacial facets are parallel to the (tenfold plane)D parallel-to (fivefold plane)I, along which a good match between the D- and I-phases has been observed. These observations suggest a possible ledge growth mechanism of the D-phase.
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页码：159 / 164
页数：6
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