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IJPAP Vol.43(03) [March 2005] >


Title: Characteristic Bhatia-Thornton static structure and diffusion coefficients of liquid LiNa and KPb alloys
Authors: Nath, P P
Joarder, R N
Keywords: Bhatia-Thornton static structure
Diffusion coefficients
Liquid alloy
Liquid LiNa alloy
Liquid KPb alloy
Issue Date: Mar-2005
Publisher: CSIR
IPC CodeG01N
Abstract: The liquid alloys, LiNa and KPb are strongly phase separating (ps) and compound forming (cf) alloys respectively and are known to have opposite ordering properties. The Bhatia-Thornton (BT) static structure factors are important indicators of the ordering properties and can best be understood in terms of ordering potential obtained from neutral pseudo atom method. In this paper, it is investigated how this difference in static structural behaviour could influence the dynamical property like self and mutual diffusion coefficients as a function of concentration of the lighter component. The method of Helfand’s linear trajectory principle has been used in the calculation and this gives results comparable with recent calculations based on VACF total memory function formalism. Both the methods yield D versus 1/T curve almost linear similar to what is found for pure liquid metals.
Page(s): 180-183
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.43(03) [March 2005]

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