Estimating the metal-ceramic van der Waals adhesion energy

被引:68
作者
Lipkin, DM [1 ]
Israelachvili, JN [1 ]
Clarke, DR [1 ]
机构
[1] UNIV CALIF SANTA BARBARA, DEPT MAT, SANTA BARBARA, CA 93106 USA
来源
PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES | 1997年 / 76卷 / 04期
关键词
D O I
10.1080/01418619708214205
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We invoke the Lifshitz theory of van der Waals forces to derive a simple, analytical expression for the adhesion across a planar metal-ceramic interface. The van der Waals energy is conveniently expressed as a function of readily accessible bulk properties of the respective materials. Application to several non-reactive metal-sapphire systems shows the predicted van der Waals energy to provide a good lower-bound estimate of the measured adhesion energy. Apart from platinum and palladium, where strong metal-aluminium interactions have been predicted, adhesion energies in noble-metal systems are well accounted for by van der Waals interactions alone. Not surprisingly, adhesion in the more chemically active metals exceeds the van der Waals energy.
引用
收藏
页码:715 / 728
页数:14
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