DEFECTS AND TRANSPORT-PROPERTIES OF METAL-OXIDES

The paper gives an overview of different types of defects and defect s tructures es in metal oxides and transport properties such as diffusio n and electrical conductivity. Point defects (vacancies, interstitials , impurity and dopant ions, hydrogen ions, a.o.) and corresponding def ect structures are described by defect equations and equilibria. Oxide s of common use metals and which are of particular interest in many as pects of high-temperature oxidation of metals, e.g., cobalt and nickel oxides, chromia, alumina and silica, are used as examples in describi ng defect structures and transport properties.