Predictive Model for Interfacial Phenomena Between Molten Metals and Sapphire in Varying Oxygen Partial Pressures

  • A. C. D. Chaklader
  • W. W. Gill
  • S. P. Mehrotra
Part of the Materials Science Research book series (MSR, volume 14)


A model has been developed to predict the interfacial behaviour between a molten metal and an alumina substrate at different oxygen partial pressures. In developing the model, the existing sessile drop data on Cu-, Ag-, Fe- and Ni-A12O3 systems are used.

In the equation there are three empirical constants, which have been estimated from the thermodynamic considerations. The agreement between the predicted and the experimentally calculated value of γSL as a function of ln [O2−] is reasonably good. It has been shown that the model can be used to predict the interfacial behaviour of a molten metal — A12O3 system of which no sessile drop data exists.


Contact Angle Oxygen Partial Pressure Molten Metal Sessile Drop Ceramic Substrate 
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Copyright information

© Plenum Press, New York 1981

Authors and Affiliations

  • A. C. D. Chaklader
    • 1
  • W. W. Gill
    • 1
  • S. P. Mehrotra
    • 1
  1. 1.Department of Metallurgical EngineeringThe University of British ColumbiaVancouverCanada

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