Nonstoichiometric interfaces and Al2O3 adhesion with Al and Ag

被引：164

作者：

Zhang, W ^{[1
]}

Smith, JR

机构：

[1] Princeton Univ, Princeton Mat Inst, Princeton, NJ 08540 USA

[2] Delphi Res Labs, Warren, MI 48090 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.85.3225

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have determined the relative stability of stoichiometric, oxygen-rich, and aluminum-rich Al/Al2O3 and Ag/Al2O3 interfaces from first principles. Stable structures vary significantly with oxygen chemical potentials. Computed works of adhesion agree reasonably well with sessile drop experimental values, including correlation with measured oxygen chemisorption effects on Ag. The ordering of predicted bond energies of the interfaces, ceramics, and metals seems consistent with monotonic and fatigue fracture experiments.

引用

页码：3225 / 3228

页数：4

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