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General Aspects of the Crystallization of Glass

  • C. G. Bergeron

Abstract

Crystallization is generally viewed as a two-step process. The first step involves the formation of a stable nucleus and the second the growth of the nucleus to form a crystal. Nucleation may be classified as either homogeneous or heterogeneous. If nucleation occurs within a pure phase, where the probability of such an occurrence is the same throughout the phase, the process is described as homogeneous. Heterogeneous nucleation involves the formation of a nucleus at an interface which serves to catalyze the reaction. Such discontinuities as container walls, bubble surfaces, or particles of a second phase may provide an energetically favorable site for a nucleus to form.

Keywords

Free Energy Change Screw Dislocation Large Undercoolings Small Undercoolings Strontium Borate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Editor’s Note

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Copyright information

© Plenum Press, New York 1972

Authors and Affiliations

  • C. G. Bergeron
    • 1
  1. 1.Dept. of Ceramics Engineering and Materials Research LaboratoryUniversity of IllinoisUrbana-ChampaignUSA

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