Short-Range Order for CuAu Binary Alloys: Pseudopotential Theory of Alloys Revisited

摘要

The electronic theory of short-range order developed is applied to the analysis of published experimental data on short-range order parameter for CuAu system. The analysis of the failure of perfectly periodic lattice approximation assumed in the previous theoretical procedure to predict the SRO in CuAu system is made. It is shown that in the improved procedure, whereby one accounts for the static lattice distortions due to difference in sizes of atoms, one faithfully reproduces the experimentally observed short-range order in CuAu system. The scope of a further extension of the present theory is discussed. 24 references, 1 figure, 1 table. (ERA citation 12:042645)