Interface phenomena in the Y2O3/(Al-Cu) system

被引：23

作者：

Barzilai, S

Aizenshtein, M

Froumin, N

Frage, N

机构：

[1] Ben Gurion Univ Negev, Dept Mat Engn, IL-84105 Beer Sheva, Israel

[2] Nucl Res Ctr Negev, IL-84190 Beer Sheva, Israel

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2006年 / 420卷 / 1-2期

关键词：

wetting; yttrium oxide; copper; aluminum; thermodynamic;

D O I：

10.1016/j.msea.2006.01.048

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Wetting behavior and the interface reaction in the Y2O3/(Cu-Al) system were investigated at 1423 K. A contact angle of about 130 degrees was measured in the Y2O3/Cu system. Aluminum addition to copper improves wetting and the transition from non-wetting to wetting (theta < 90 degrees) was observed for the alloy with 50 at.% Al. The microstructure examination of the interface indicates that Al reacts with yttria, yttrium dissolves in the melt and a crater of AlYO3 is formed at the substrate. The interface interaction in the Y2O3/(Cu-Al) system is in a good agreement with the results of a thermodynamic analysis in the Y-Al-Cu-O system. The crater depth and the macroscopic final contact angles are correlated with the Y and Al activities in the melt. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：291 / 295

页数：5

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