MANGANESE-INDUCED ORDERING IN THE ALPHA-(AL-MN-FE-SI) APPROXIMANT PHASE

被引：58

作者：

DONNADIEU, P ^{[1
]}

LAPASSET, G ^{[1
]}

SANDERS, TH ^{[1
]}

机构：

[1] GEORGIA INST TECHNOL,SCH MAT SCI & ENGN,ATLANTA,GA 30332

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 1994年 / 70卷 / 05期

关键词：

D O I：

10.1080/09500839408240993

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report a transmission electron microscopy study of alpha-(Al-Mn-Fe-Si) phases, isostructural to the alpha-(Al-Mn-Si) approximant phase. Selected-area diffraction patterns exhibit a noticeable diffuse scattering due to short-range ordering. We show that the ordering effect is reinforced by the Mn additions. This diffuse scattering can be described by a surface close to a polyhedron in the reciprocal space. We interpret the shape of this surface as a consequence of the ordering of two types of entities (Mackay icosahedra) along the [111] directions.

引用

页码：319 / 326

页数：8

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