THE COMPOSITION OF THE DECAGONAL QUASI-CRYSTALLINE PHASE IN THE AL-CU-CO ALLOY SYSTEM

被引：58

作者：

GRUSHKO, B

机构：

[1] Institut fur Festkorperforschung, Jilich, W-5170

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 1992年 / 66卷 / 03期

关键词：

D O I：

10.1080/09500839208229278

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A part of the Al-Cu-Co alloy system, including the region of the decagonal phase, was studied by scanning electron microscopy, energy-dispersive X-ray analysis and X-ray diffractometry. The decagonal phase in the Al-Cu-Co system was found to behave as a stable phase in the temperature range 550-1000-degrees-C. Its compositional region depended strongly on temperature. In a wide range of alloy compositions the decagonal phase produced at higher temperatures became supersaturated at lower temperatures. The formation of (Al,Cu)Co-13(4) in an aged supersaturated single-decagonal-phase sample was observed.

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页码：151 / 157

页数：7

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