Effects of surface coordination of atoms on the surface properties of some liquid binary alloys

摘要

We have investigated the effects of surface coordination of atoms on the surface properties of six binary liquid alloys by varying their surface coordination fractions using two statistical mechanics models. We observed that while the assumption of close-packed surface does not have any significant effect on the calculation of both surface tension and surface concentration of four of the alloys, it does have significant effects on the remaining two. The computation of the concentration fluctuations at the surface revealed that it is sensitive to the surface coordination fractions of both the chemically ordered systems and the segregating systems. In all the six alloys we found that the computation of the Warren-Cowley short-range order parameter is influenced by the surface coordination fractions.View full textDownload full textKeywordssurface coordination fraction, binary alloy, surface concentration, surface tension, relaxation, disorderRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/00319104.2011.637627