DEFECT CHEMISTRY IN METAL-OXIDES

The presentation gives a brief overview and description of point defec ts and extended defects that may be considered to arise from clusterin g or ordering of point defects. Defect chemistry and the relations bet ween defect concentrations and transport properties are exemplified an d illustrated by a review of nonstoichiometry, electrical conductivity , diffusion of cobalt and oxygen tracers, chemical diffusion, and high temperature creep of Co1-partial derivativeO.