Abstract
The theory of the kinetics of defect relaxations in crystals, developed previously for the case of a single defect species, is now extended to include defect reactions among several different species. In this way it becomes possible to obtain expressions for the various relaxation times in terms only of the symmetries of the crystal and of the interacting defects. It is shown that this generalization can be carried out using the same symmetry coordinates as were tabulated in an earlier paper. The example of a cubic crystal containing 3 species of interacting defects, which are tetragonal, trigonal and 〈110〉 orthorhombic, is considered in detail. The results are applied to the specific problem of paired interstitial defects in the bcc lattice.
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