Interpretation of P-V isoterms of polyvalent metals in terms of the pseudo-potential model

N. V. Fomin

doi:10.1117/12.299578

1 January 1998 Interpretation of P-V isoterms of polyvalent metals in terms of the pseudo-potential model

N. V. Fomin

Proceedings Volume 3345, International Workshop on New Approaches to High-Tech Materials: Nondestructive Testing and Computer Simulations in Materials Science and Engineering; (1998) https://doi.org/10.1117/12.299578
Event: International Workshop on New Approaches to High Tech Materials: Nondestructive Testing and Computer Simulations in Materials Science and Engineering, 1997, St. Petersburg, Russian Federation

Abstract

An analytical expression for short-range pair potential in polyvalent metals has been derived in the framework of the pseudopotential model. The similarity between new expression and well- known Morse functions is emphasized. Moreover, it is shown that within actual region of inter-atom distances in metal these expressions are interchangeable. A validity of the nearest- neighbor approximation, i.e. prevalence of short-range interaction in the cohesion, was found to be a sufficient base for calculation of compression dependences of the Gruneisen parameters for certain polyvalent metals. Besides this, by the use of experimental data, reasonable values for the pseudopotential model parameters have been obtained.

Citation Download Citation

N. V. Fomin "Interpretation of P-V isoterms of polyvalent metals in terms of the pseudo-potential model", Proc. SPIE 3345, International Workshop on New Approaches to High-Tech Materials: Nondestructive Testing and Computer Simulations in Materials Science and Engineering, (1 January 1998); https://doi.org/10.1117/12.299578

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