Growth of large single-grain quasicrystals from high-temperature metallic solutions

被引：29

作者：

Fisher, IR

Kramer, MJ

Islam, Z

Wiener, TA

Kracher, A

Ross, AR

Lograsso, TA

Goldman, AI

Canfield, PC

机构：

[1] Iowa State Univ, Dept Phys & Astron, Ames Lab, Ames, IA 50011 USA

[2] Iowa State Univ, Dept Mat Sci & Engn, Ames Lab, Ames, IA 50011 USA

[3] Iowa State Univ, Dept Geol & Atmospher Sci, Ames, IA 50011 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2000年 / 294卷

关键词：

quasicrystal; crystal-growth; flux-growth;

D O I：

10.1016/S0921-5093(00)01323-X

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Flux-growth techniques have been successfully applied to the preparation of several families of quasicrystals and related approximant phases. Large (up to 1 cm(3)) single-grain samples have been obtained for icosahedral R-Mg-Zn (R=Y, Gd, Tb, Dy, Ho and Er), decagonal Al-Ni-Co, icosahedral Al-Pd-Mn, icosahedral Al-Ga-Pd-Mn, and the xi' Al-Pd-Mn approximant phase. The samples are obtained by slowly cooling ternary (or quaternary) melts of a composition that intersects the primary solidification surface of the desired phase in the equilibrium ternary alloy phase diagram (i.e. this is a self-flux technique). The technique clearly reveals the growth habit, and results in remarkably strain-free quasicrystals. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：10 / 16

页数：7

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