Microscopic Structure of NaCd Compound Forming Binary Molten Alloys
- 1
- 2
- 3
Abstract
A simple statistical mechanical theory based on compound formation model (compound A<sub>μ</sub> B<sub>v</sub> formed by the preferential arrangement of A and B constituent atoms of the alloy AB, μA + νB ≒ A<sub>μ</sub> B<sub>v</sub>) has been used to investigate the phenomena of compound formation in NaCd liquid alloys through the study of concentration fluctuation in the long wavelength region [S<sub>cc</sub>(0)] and chemical short range order parameter (α<sub>1</sub>). The study explains the observed asymmetry successfully and suggest the existence of Cd<sub>2</sub>Na complex in the melt. The tendency of compound has been found to be weak. A tendency of inversion from segregation to order although very small, has been observed, in NaCd liquid alloys.
- A.B. Bhatia and W.H. Hargrove, “Concentration fluctuations and thermodynamic properties of some compound forming binary molten systems” Physical Review B, Vol. 10, No. 8, 1974, pp. 3186-3196.
- R.N. Singh, “Short-range order and concentration fluctuations in binary molten alloys” Candian Journal of Physics, Vol. 65, No. 3, 1987, pp. 309-325.
- A.B. Bhatia, W.H. Hargrove and D.E. Thorntron, “Concentration fluctuations and partial structure factors of compound-forming binary molten alloys” Physical Review B, Vol. 9, No. 2, 1974, pp. 435-444.
- L.C. Prasad, R.N. Singh, V. N. Singh and S.K. Chatterjee, “Compound formation in Sn-based liquid alloys”Physica B: Physics of Condensed Matter, Vol. 215, No. 2-3, 1995, pp. 225-232.
- L.C. Prasad, S.K. Chatterjee and V.N. Singh, “Intermetallic associations in AlMg liquid alloys” Physica B: Physics of Condensed Matter, Vol. 217, No. 3-4, 1996, pp. 285- 291.
- R. Hultgren, P.D. Desai, D.T. Hawkins, M. Gleiser and K.K. Kelley, “Selected Values of the Thermodynamic Properties of Binary Alloys” ASM, Metal Park, 1973.
- L.C. Prasad, R.N. Singh, “A Quasi-lattice Model for the Thermodynamic Properties of Au-Zn Liquid Alloys” Physics and Chemistry of Liquids, Volume 22, No. 1 & 2 1990, pp. 1-9.
- K. Hoshino and W. H. Young, “Entropy of mixing of compound forming liquid binary alloys” Journal of Physics F: Metal Physics, Vol. 10, No. 7, 1980, pp.1365.
- N.K.P Singh, R.N. Singh and R. B. Choudhary, “Thermodynamic investigation of atomic order in AlMg liquid alloys” Journal of Physics: Condensed Matter, Vol. 3, No. 20, 1991, pp. 3635.
- R.N. Singh and F. Sommer, “Temperature dependence of the thermodynamic functions of strongly interacting liquid alloys” Journal of Physics: Condensed Matter, Vol. 4, No. 24, 1992, pp. 5345.
- P.J. Flory, “Thermodynamics of High Polymer Solutions” Journal of Chemical Physics, Vol. 10, 1942, pp. 51-61.
- S.K. Chatterjee and L.C. Prasad, “Microscopic structure of CuSn compound forming binary molten alloys”, Indian Journal of Pure and Applied Physics, Vol. 42, 2004, pp. 283-287.