Highly faceted growth shape of microvoids in icosahedral Al-Mn-Pd

被引：31

作者：

Beeli, C ^{[1
]}

Godecke, T

Luck, R

机构：

[1] ETH Zurich, Solid State Phys Lab, CH-8093 Zurich, Switzerland

[2] Max Planck Inst Met Forsch, D-70174 Stuttgart, Germany

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 1998年 / 78卷 / 05期

关键词：

D O I：

10.1080/095008398177733

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Faceted microholes in icosahedral Al-Mn-Pd quasicrystals form by condensation of thermal vacancies; typically during annealing in the temperature range above approximately 700 degrees C. Prolonged annealing at temperatures between 750 and 830 degrees C leads to the growth of large and highly faceted microholes through a classical Ostwald ripening process. The indexing of all facets of such a microhole is presented. The idealized morphology is found to correspond to an icosahedral polyhedron with 302 facets.

引用

页码：339 / 348

页数：10

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