• Pressure-volume calculation in bcc metals using Born stability criteria

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      https://www.ias.ac.in/article/fulltext/pram/053/04/0783-0794

    • Keywords

       

      Two-body pair potential; Born stability criteria; second and third order elastic constants; bcc metals

    • Abstract

       

      A simple analytical two-body potential φ(r) = −Ar−n + B exp(−prm) is considered for P-V calculations in bcc metals using Born stability criteria. It is shown that the stability of bcc metals can be expressed uniquely as a function of a parameter q (discussed in the text). The P-V calculations are done in ten bcc metals. The calculations are compared with the experimental data of shock-wave measurements and also with other potential available. It is found out that the present potential is better than the other two-body potentials in case of bcc metals. Further, the calculations done for TOEC and the first pressure derivative of SOEC are found in good agreement with the reported results.

    • Author Affiliations

       

      Piyush Kuchhal1 Narsingh Dass1

      1. Physics Department, University of Roorkee, Roorkee - 247 667, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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