Iron as an oxygen tracer at the aluminum-alumina interface

被引：13

作者：

Levi, G ^{[1
]}

Kaplan, WD ^{[1
]}

机构：

[1] Technion Israel Inst Technol, Dept Mat Engn, IL-32000 Haifa, Israel

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2002年 / 85卷 / 06期

关键词：

D O I：

10.1111/j.1151-2916.2002.tb00318.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

During wetting experiments of pure aluminum on the (0001) plane of sapphire, an aluminum sample was unintentionally contaminated with 31 atoms/parts per million of iron. Transmission electron microscopy investigations of the sample after cooling showed the formation of FeAlO3 at the aluminum-Al2O3 interface. Formation of FeAlO3 confirms the existence of a high oxygen activity at the liquid aluminum-sapphire interface, which is considered to be the reason for the strong adhesion between aluminum and Al2O3. A low indexed orientation relationship between FeAlO3 and Al2O3 was determined, where [2 (2) over bar1](FeAlO3) parallel to [1 (1) over bar 00](Al2O3) and (110)(FeAlO3) parallel to (0001)(Al2O3).

引用

页码：1601 / 1606

页数：6

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