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Surface and Grain Boundary Segregation in Metal Oxides

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Surfaces and Interfaces of Ceramic Materials

Part of the book series: NATO ASI Series ((NSSE,volume 173))

Abstract

Experimental approaches in studies of surface and grain boundary segregation in ionic solids are considered. The experimental material on both intrinsic and extrinsic segregation is discussed from the viewpoint of predominant driving forces of segregation. The direct effect of segregation involves an increased solubility limit within the interface region and resulting formation of bidimensional structures of extraordinary properties such as transport, magnetic and optical properties. The effect of segregation on properties of materials is considered in terms of phase diagrams of fine powder ceramics and sintering mechanism of ceramics. Also the catalytical aspect of the problem is briefly discussed.

Experimental data on surface and grain boundary segregation are reviewed for several oxide materials such as ZrO2; Al2O3, MgO, SnO2, NiO, CoO and their solid solutions. Possible effect of interfaces on critical parameters of high Tc oxide superconductors is also considered. Most urgent research pathways in the surface and grain boundary chemistry are discussed.

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Authors and Affiliations

  1. Max-Planck-Institut für Festkörperforschung, 7000, Stuttgart 80, Germany

    J. Nowotny

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  1. J. Nowotny
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Editors and Affiliations

  1. Réactivité des Solides, UA 23 CNRS, Université de Bourgogne, Dijon, France

    Louis-C. Dufour

  2. Laboratoires de Bellevue, Physique des Matériaux, CNRS, Meudon, France

    Claude Monty

  3. Ingénierie des Matériaux et des Hautes Pressions, CNRS, Université de Paris-Nord, Villetaneuse, France

    Georgette Petot-Ervas

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© 1989 Kluwer Academic Publishers

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Nowotny, J. (1989). Surface and Grain Boundary Segregation in Metal Oxides. In: Dufour, LC., Monty, C., Petot-Ervas, G. (eds) Surfaces and Interfaces of Ceramic Materials. NATO ASI Series, vol 173. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1035-5_13

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  • DOI: https://doi.org/10.1007/978-94-009-1035-5_13

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-6957-1

  • Online ISBN: 978-94-009-1035-5

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