Preface 1.Introduction Reference 2.A Few Useful Cryst0al Structures Introduction Close-Packed Structures Structures for Einght-Coordinate Cations Structures for Ternary Compounds Conclusion References Pnoblems 3.Lattice Defects and the Law of Mass Action Introduction Lattice Defects as Part of the Equilibrium State The Law of Mass Action Anoter View of Mass Actiom Lattice Disorder in Elemental Solids Summary References 4.Intrinsic Ionic Disorder Lattice Defects and Reference States onservation Rules Defect Notation Major Types of Intrinsic Ionic Disorder General Comments on Intrinsic Ionic Disorder References Problems 5.Extrinsic Ionic Disorder Introduction The AgCl-CdCls System The CaF2CaO System The TiO2-Nb2O5System Summary of Important Points Schematic Representation of Defect Concentrations Sunmmary of Extrinsic Ionic Disorder References Problems 6.Defect Complexes and Associates Introducation Complexes Containing an Impurity Center and an Ionic Defect Intrinsic Ionic Defect Associates The Effect of Impurities on the COncentrations of Defect COmplexes and Associates REferences 7.Ionic Transport Introduction Basic Concepts of Diffusion Ionic Conducation in Crystalline Solids Intrinsic and Extrinsic Ionic Conduction Fast Ion Conductors Referencess 8.Intrinsic Electronic Disorder Introduction The Development of Energy Bands The Mass-Action Approach The Fermi Function Holes Waves and Effective Masses Electronic Conductivity Hopping Mechanisms The Band Structure of Compounds Chemistry and the Band Gap Summary References 9.Extrinsic Electronic Disorder 10.Intrnsic Nonstoichiometry 11.Extrinsic Nonstoichiometry 12.Titanium Dioxide 13.Cobalt Oxide and Nickel Oxide 14.Barium Titanate 15.Order versus Disorder Index