The Defect Chemistry of Metal Oxides

Hardcover | June 15, 2000

byD. M. Smyth

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The Defect Chemistry of Metal Oxides is a unique introduction to the equilibrium chemistry of solid inorganic compounds with a focus on metal oxides. Accessible to students with little or no background in defect chemistry, it explains how to apply basic principles and interpret the relatedbehavior of materials. Topics discussed include lattice and electronic defects, doping effects, nonstoichiometry, and mass and charge transport. The text distinctly emphasizes the correlation between the general chemical properties of the constituent elements and the defect chemistry and transportproperties of their compounds. It covers the types of defects formed, the effects of dopants, the amount and direction of nonstoichiometry, the depths of acceptor and donor levels, and more. Concluding chapters present up-to-date and detailed analyses of three systems: titanium dioxide, cobalt oxideand nickel oxide, and barium titanate. The Defect Chemistry of Metal Oxides is the only book of its kind that incorporates sample problems for students to solve. Suitable for a variety of courses in materials science and engineering, chemistry, and geochemistry, it also serves as a valuablereference for researchers and instructors.

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The Defect Chemistry of Metal Oxides is a unique introduction to the equilibrium chemistry of solid inorganic compounds with a focus on metal oxides. Accessible to students with little or no background in defect chemistry, it explains how to apply basic principles and interpret the relatedbehavior of materials. Topics discussed include...

D. M. Smyth is at Lehigh University.

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Format:HardcoverPublished:June 15, 2000Publisher:Oxford University PressLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0195110145

ISBN - 13:9780195110142

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Table of Contents

1. IntroductionReference2. A Few Useful Crystal StructuresIntroductionClose-Packed StructuresStructures for Eight-Coordinate CationsStructures for Ternary CompoundsConclusionReferencesProblems3. Lattice Defects and the Law of Mass ActionIntroductionLattice Defects as Part of the Equilibrium StateThe Law of Mass ActionAnother View of Mass ActionLattice Disorder in Elemental SolidsSummaryReferences4. Intrinsic Ionic DisorderLattice Defects and Reference StatesConservation RulesDefect NotationMajor Types of Intrinsic Ionic DisorderGeneral Comments on Intrinsic Ionic DisorderReferencesProblems5. Extrinsic Ionic DisorderIntroductionThe AgCl-CdCl2 SystemThe CaF2-CaO SystemThe TiO2-Nb2O5 SystemSummary of Important PointsSchematic Representation of Defect ConcetrationsSummary of Extrinsic Ionic DisorderReferencesProblems6. Defect Complexes and AssociatesIntroductionComplexes Containing an Impurity Center and an Ionic DefectIntrinsic Ionic Defect AssociatesThe Effect of Impurities on the Concentrations of Defect Complexes and AssociatesReferences7. Ionic TransportIntroductionBasic Concepts of DiffusionIonic Conduction in Crystalline SolidsIntrinsic and Extrinsic Ionic ConductionFast Ion ConductorsReferences8. Intrinsic Electronic DisorderIntroductionThe Development of Energy BondsThe Mass-Action ApproachThe Fermi FunctionHoles, Waves, and Effective MassesElectronic ConductivityHopping MechanismsThe Band Structure of CompoundsChemistry and the Band GapSummaryReferences9. Extrinsic Electronic DisorderIntroductionInteractions with the Gaseous AmbientThe Choice of Compensating DefectThe Chemical Consequences of Electronic CompensationThe Interactions of Impurity Centers with Electrons and HolesThe Situation for CompoundsSummaryReferences10. Intrinsic NonstoichiometryIntroductionNonstoichiometry in Pure Crystalline CompoundsNonstoichiometry and Equilibrium Defect ConcentrationsThe Hypothetical Compund MX with Schottky DisorderSummary of the Kroger-Vink Diagram for MXConclusion of the Discussion of MXA More Complex Kroger-Vink DiagramSummary of the Kroger-Vink Diagrams for Intrinsic NonstoichiometryEnthalpy RelationshipsConclusionReferenceProblems11. Extrinsic NonstoichiometryIntroductionA Simple Example: Donor-Doped MXEnthalpy RelationshipsA More Complex Example: Acceptor-Doped M2O3General ConsiderationsNonstoichiometric Reactions in the Impurity-Controlled RegionProblems12. Titanium DioxideIntroductionThe Amount of NonstoichiometryThe Equilibrium Electrical Conductivity of Undoped TiO2The Seebeck Coefficient of Undoped TiO2Ionic Conduction in TiO2The Effect of Dopants on TiO2General Comments on the Defect Chemistry of TiO2ReferencesProblems13. Cobalt Oxide and Nickel OxideIntroductionCobaltous Oxide, CoONickelous Oxide, NiOSummaryReferences14. Barium TitanateIntroductionGeneral ExpectationsThe Equilibrium Conductivity of Undoped BaTiO3Insulating Properties of BaTiO3Acceptor-Doped BaTiO3Ionic Conduction in BaTiO3Donor-Doped BaTiO3Trivalent Dopants in BaTiO3SummaryReferences15. Order versus DisorderBlock StructuresSummaryReferencesIndex