Structural Properties of In_1-xSn_x at Different Concentrations and Temperatures

Abstract:

The partial structure factors for liquid alloy In_1-xSn_x have been computed at varying concentration and temperatures using pseudopotential theory. The structure factor S(q) and pair correlation function g (r) have been determined using the hard-sphere approximation. The temperature dependent hard-sphere diameter σ (T) is estimated using Vσ=Vminr+12kBT criterion from the computed pair potential. The modified empty-core local pseudopotential, which represents the orthogonalisation effect due to s-core states, is used for electron–ion interaction with proper screening function. The only potential parameter, the core radius, is determined at different temperatures from the knowledge of structure factor. Intrinsic temperature effects have been studied through dimensionless damping term (see formula in paper) in the pair potential. The effect of temperature and concentration on structure factors is discussed to shed light on bonding in technologically important alloy. This used pseudopotential proved successful in explaining the structural properties of non-crystalline alloys at higher temperatures.

• Periodical: Advanced Materials Research (Volume 1141)
• Pages: 142-146
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1141.142
• Online since: August 2016
• Authors: C.H. Patel*, Amit B. Patel, Nisarg K. Bhatt, P.N. Gajjar
• Keywords: In_1-xSn_x, Pair Correlation Function, Structure Factor

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