Premium
A note on the mechanics of diffusion of defects in solids
Author(s) -
Michel B.,
Michael D.
Publication year - 1983
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170180508
Subject(s) - spinodal decomposition , crystallographic defect , lattice (music) , lattice diffusion coefficient , spinodal , diffusion , surface diffusion , materials science , continuum mechanics , condensed matter physics , thermodynamics , mechanics , statistical physics , classical mechanics , physics , chemistry , effective diffusion coefficient , phase (matter) , quantum mechanics , adsorption , medicine , acoustics , magnetic resonance imaging , radiology
This paper deals with diffusion of point defects due to lattice deformations around the defects. The continuum theory of lattice defects is applied to derive suitable diffusion equations taking into consideration the fields of self‐stresses caused by the drift of defects. The model is applied to defects near surfaces and interfaces. The interesting phenomenon of “near‐surface Cottrell atmospheres” is discussed. The authors show that Cahns theory of spinodal decomposition is included in the model as a special case.