The Influence of Surface Anisotropy Crystalline Structure on Wetting of Sapphire by Molten Aluminum

被引：5

作者：

Aguilar-Santillan, Joaquin ^{[1
]}

机构：

[1] Univ Alabama, Dept Mat & Met Engn, Tuscaloosa, AL 35487 USA

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2013年 / 44A卷 / 05期

关键词：

ALPHA-ALUMINA;

D O I：

10.1007/s11661-012-1582-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The wetting of sapphire by molten aluminum was investigated by the sessile drop technique from 1073 K to 1473 K (800 A degrees C to 1200 A degrees C) at PO2 < 10(-15) Pa under Ar atmosphere. This study focuses on sapphire crystalline structure and its principle to the interface. The planes "a" and "b" are oxygen terminated structures and wet more by Al, whereas the "c" plane is an aluminum terminated structure. A wetting transition at 1273 K (1000 A degrees C) was obtained and a solid surface tension proves the capillarity trends of the couple.

引用

页码：2299 / 2306

页数：8

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