STABLE AL-MN-PD QUASI-CRYSTALS

被引：131

作者：

BEELI, C

NISSEN, HU

ROBADEY, J

机构：

[1] Solid State Laboratory, Swiss Federal Institut of Technology Zürich, Zürich

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 1991年 / 63卷 / 02期

关键词：

D O I：

10.1080/09500839108201964

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A stable decagonal quasicrystal phase in the Al-Mn-Pd system is described. Its composition is Al70.5Mn16.5Pd13, as determined by X-ray microanalysis attached to a scanning electron microscope. The temperature range of stability has been found to be around 800-degrees-C by investigation of differently annealed specimens in a transmission electron microscope. An icosahedral quasicrystal phase with composition Al70.5Mn8.5Pd21 and a face-centred icosahedral quasilattice has also been found, partly in coexistence with the new decagonal phase. The icosahedral phase is also stable at temperatures around 800-degrees-C. The Al-Mn-Pd system is the first system in which stable decagonal quasicrystals as well as stable icosahedral quasicrystals occur.

引用

页码：87 / 95

页数：9

共 24 条

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