Abstract
The article represents the thermodynamical study of the liquid Li1-xKx binary alloy by Gibbs–Bogoliubov (GB) inequality [1, 2]. The internal energy (FINT), Helmhotz free energy (FH) and various contributions to the entropy (Shs) have been calculated with the help of universal model potential of Fiolhais et al. [3] with its universal parameters for the first time. Here we have employed total eight local field corrections functions given by the Hartree (H) [4], Hubbard-Sham (HS) [5, 6], Nagy (N) [7], Vashishtha-Shingwi (VS) [8], Taylor (T) [9], Sarkar et al. (S) [10], Ichimaru-Utsumi (IU) [11] and Farid et al. (F) [12] for studying the screening influences on the aforesaid study. A well applicable Percus-Yevick hard sphere reference system [13] is applied for the structure factor calculation. Good agreement between experimental results at some concentration is achieved and the trend of current results with that of the other theoretical data proves the transferability of the potential to liquid alkali alloys under the study.
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