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Clarification of the Nature of Phenomenologically Elementary Processes and Unresolved Problems of Theory

  • V. A. Ivensen
Part of the Studies in Soviet Science book series (STSS)

Abstract

The phenomenological analysis of elementary processes that occur during sintering leads to a number of conclusions on the lattice defects responsible for accelerated flow of a crystalline substance:
  1. 1.

    These defects constitute a small fraction of the defects in real crystals.

     
  2. 2.

    The defects responsible for accelerated flow may differ substantially in their energetic characteristics for different powders. The activation energy of the elimination of defects may vary within wide limits, depending on the conditions in which the powder was obtained.

     
  3. 3.

    The activation energy of the elimination of defects is independent of the concentration of defects. It is a constant for a powder obtained by a given method.

     
  4. 4.

    The process of the elimination of defects responsible for accelerated flow obeys second-order kinetics.

     

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Copyright information

© Consultants Bureau, New York 1973

Authors and Affiliations

  • V. A. Ivensen
    • 1
  1. 1.All-Union Scientific Research Institute for Hard AlloysMoscowUSSR

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