Defect chemistry in metal oxides

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Abstract The presentation gives a brief overview and description of point defects and extended defects that may be considered to arise from clustering or ordering of point defects. Defect chemistry and the relations between defect concentrations and transport properties are exemplified and illustrated by a review of nonstoichiometry, electrical conductivity, diffusion of cobalt and oxygen tracers, chemical diffusion, and high temperature creep of Co1-δO. Crystals are like people, it is the defects that make them interesting F.C. Frank