期刊
TRIBOLOGY LETTERS
卷 24, 期 2, 页码 105-114出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s11249-006-9040-9
关键词
zinc dialkyldithiophosphates; anti-wear films; ab initio molecular dynamics
We review a recently developed molecular-level theory for the formation and functionality of zinc dialkyldithiophosphate anti-wear films [N. J. Mosey, M. H. Muser and T. K. Woo, Science 307 (2005) 1612]. This theory is based on the idea that pressure-induced cross-linking leads to chemically connected networks. The formation of cross-links modifies the mechanical properties of the films such that wear inhibition may be enhanced. Furthermore, the networks remain intact upon release of the pressure, which resists flow of the film out of the contact area. The ability of the theory to account for a diverse body of experimental data related to anti-wear additives and films is discussed. Routes towards the development of new AW additives are also suggested on the basis of the theory.
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