AL-CU-FE QUASI-CRYSTALS - LOW-TEMPERATURE UNSTABILITY VIA A MODULATION MECHANISM

被引：49

作者：

JANOT, C

AUDIER, M

DEBOISSIEU, M

DUBOIS, JM

机构：

[1] ECOLE NATL SUPER ELECTROCHIM & ELECTROMET GRENOBLE,THERMODYNAM & PHYSICOCHIM MET LAB,F-38402 ST MARTIN DHERES,FRANCE

[2] ECOLE MINES,SCI & GENIE MAT MET LAB,F-54042 NANCY,FRANCE

来源：

EUROPHYSICS LETTERS | 1991年 / 14卷 / 04期

关键词：

D O I：

10.1209/0295-5075/14/4/012

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Quasi-crystals of the Al-Cu-Fe system, when given enough time for reaching equilibrium cannot be maintained as a single phase down to room temperature. For the first time, reversible transitions have been observed from rhombohedral microcrystals to a modulated icosahedral structure around (650 divided-by 700)degrees-C, which transforms further into a perfect icosahedral quasi-crystal between (750 divided-by 820)degrees-C and finally turns into a mixture of cubic and monoclinic crystals above 865-degrees-C before total melting.

引用

页码：355 / 360

页数：6

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