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The Role of Phase Boundaries During Reaction Between Single Crystals of Various Oxides

  • H. G. Sockel
  • H. Schmalzried
Conference paper
Part of the Materials Science Research book series (MSR)

Abstract

Phase-boundary reactions between single crystals of different binary oxides (e.g., NiO + Al2O3 → NiAl2C4) are described. The reaction product can be monocrystalline or polycrystalline depending upon crystal structure of reactants and reaction product and on experimental conditions. The reaction product may be a single crystal even if the crystal structures of the reactants differ from that of the reaction product. Examples are given. Epitaxy, structural relationships, and the atomic mechanism of the phase-boundary reaction are discussed. It is concluded that under certain conditions dislocations may play a decisive role for the phase-boundary reaction. The kinetics involving phase-boundary reactions is discussed.

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Copyright information

© Springer Science+Business Media New York 1966

Authors and Affiliations

  • H. G. Sockel
    • 1
  • H. Schmalzried
    • 1
  1. 1.Max Planck Institut für Physikalische ChemieGöttingenGermany

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