Metallurgical and Materials Transactions A

, Volume 25, Issue 3, pp 599–605 | Cite as

Experimental study of the influence of interfacial energies and reactivity on wetting in metal/oxide systems

  • L. Espié
  • B. Drevet
  • N. Eustathopoulos
Physical Chemistry


The wetting of a CuPd alloy containing 15 at. pct Ti at 1473 K on three oxide substrates (alumina, mullite, and silica) of different stability with respect to the liquid alloy was studied. Contact angle measurements were performed using the sessile drop method. The morphological and chemical characteristics of the metal/ceramic interface were determined by scanning electron microscopy, X-ray diffraction, and electronic microprobe. Results on reactivity were explained on the basis of a detailed description of the thermodynamics of interfacial reactions. The relative magnitude of the two contributions involved in the theory of reactive wetting—that is, the change in the nature of interfaces and the free energy released by the reaction—was discussed. It has been concluded that for the systems studied in the present work and more generally for systems with a limited or moderate reactivity, the term accounting for interfacial energy change appears to be the predominant contribution to reactive wetting.


Contact Angle Material Transaction Interfacial Reaction Liquid Alloy Triple Line 
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Copyright information

© The Minerals, Metals and Materials Society, and ASM International 1994

Authors and Affiliations

  • L. Espié
    • 1
  • B. Drevet
    • 2
  • N. Eustathopoulos
    • 3
  1. 1.School of MinesParisFrance
  2. 2.Center of Nuclear StudiesGrenobleFrance
  3. 3.CNRS-INPGrenobleFrance

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