Abstract
The lattice statics Green’s function method for calculation of the atomistic structure of grain boundary interfaces in solids as described in Part I is extended to include anharmonic effects. It is shown that the ‘anharmonic’ response of a solid to ‘anharmonic’ forces can be represented in terms of the ‘harmonic’ response of the solid to an effective anharmonic force. The Green’s function method then requires solving a finite order nonlinear matrix equation, which is done by using standard numerical methods. For the purpose of illustration, the method is applied to calculate the atomistic structure of a ∑5 tilt boundary in fec copper.
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Tewary, V.K., Fuller, E.R. Lattice statics Green’s function method for calculation of atomistic structure of grain boundary interfaces in solids: Part II. Anharmonic theory. Journal of Materials Research 4, 320–326 (1989). https://doi.org/10.1557/JMR.1989.0320
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DOI: https://doi.org/10.1557/JMR.1989.0320