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Diffusion and transport in strain gradients
Author(s) -
Frohberg G.
Publication year - 1971
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.2220480123
Subject(s) - saddle point , position (finance) , strain (injury) , diffusion , saddle , classical mechanics , physics , condensed matter physics , lattice (music) , relaxation (psychology) , einstein relation , mechanics , materials science , geometry , thermodynamics , mathematics , anatomy , psychology , medicine , mathematical optimization , social psychology , metric (unit) , operations management , finance , acoustics , economics
The effect of a strain gradient on the drift velocity and the effect of the strain on the migration energy of point defects are deduced in terms of double force tensors associated with the defect in the stable lattice position and the saddle point position. General equations for the force of transport and the migration energy are deduced and discussed for special cases of strains and double force tensors; the relation to relaxation and activation volumes is given.