• Strain field due to self-interstitial impurity in Ni

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      https://www.ias.ac.in/article/fulltext/pram/060/01/0159-0166

    • Keywords

       

      Strain field; transition metal dilute alloys; point defects; Kanzaki method

    • Abstract

       

      The embedded-atom method have been applied to study the strain field produced by the self-interstitial impurity at the octahedral site in Ni. The calculation have been carried out consistently on the basis of discrete lattice theory, using Kanzaki method. The atomic force constants are evaluated using Wills and Harrison interatomic potential. The dynamical matrix and external force are evaluated considering the interaction up to first nearest neighbors. The atomic displacements are tabulated up to 20NN’s. These displacements are of oscillatory nature and of decreasing magnitude with NN’s distance. The physical properties such as self-interstitial formation energy and volume change calculated using atomic displacements are in accordance with the earlier studies.

    • Author Affiliations

       

      Hitesh Sharma1 S Prakash2

      1. Department of Physics, Panjab University, Chandigarh - 160 014, India
      2. Jiwaji University, Gwalior - 474 011, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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