Wavenumber-dependent concentration fluctuations in liquid mixtures
- 21 March 1975
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 8 (6) , 751-760
- https://doi.org/10.1088/0022-3719/8/6/005
Abstract
In the conformal solutions model for liquid mixtures the deviation of the concentration-concentration correlation function Scc(q) from its value c(1-c) in an ideal solution is given by the Fourier transform of the product of the radial distribution function g(r) and the pair potential phi (r) of the reference liquid. The form of Scc(q) is calculated for choices of the reference liquid appropriate to: (a) a liquid mixture of rare gas atoms and (b) some liquid metal alloys. As yet there is no suitable experimental data on an alloy for which the conformal solution model is known to be applicable, but it is shown that the data of Ruppersberg (1973) on Li-Pb alloys can be usefully interpreted in the light of the results presented. Some comments are also made on Cu6Sn5.Keywords
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