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Annihilation of Frenkel Pairs in B.C.C. Metals (α‐Iron). II. The Case of the Unstressed Lattice (Numerical Results)
Author(s) -
Ratishvili I. G.
Publication year - 1985
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221290111
Subject(s) - annihilation , lattice (music) , vacancy defect , annealing (glass) , physics , frenkel defect , distribution function , atomic physics , condensed matter physics , molecular physics , materials science , nuclear physics , thermodynamics , acoustics
A model describing the Frenkel pair annihilation process is presented. The annihilation rate is assumed to be governed by two factors: the distribution function X ( r ), giving the initial relative spacing of the components of a Frenkel pair, and the distribution function F ( r ), describing the potential barriers in the vicinity of a vacancy‐interstitial pair. Numerical calculations are performed for the case of the b.c.c. lattice of α‐iron and the results are compared with the experimental data. In the proposed scheme of description the existence of a number of substages at the first annealing stage is explained easily.