The relationship between the microstructure and thermal diffusivity of plasma-sprayed tungsten coatings View Full Text


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Article Info

DATE

1995-09

AUTHORS

S. Boire-Lavigne, C. Moreau, R. G. Saint-Jacques

ABSTRACT

Tungsten and tungsten alloy coatings are candidate materials for plasma facing components of divertor plates in future fusion reactors. In normal operation, the sprayed coatings will be submitted to intense heat fluxes and particle bombardment. This work investigated the relationship between the microstructure of plasma-sprayed tungsten coatings and their thermal diffusivity as determined by the laser flash method. The microstructural investigation was carried out on copper-infiltrated coatings. Such a preparation technique permitted the measurement of the total true contact area between the lamellae within the tungsten coatings. The spraying atmosphere was found to strongly influence the interfacial contact between lamellae and coating thermal diffusivity. More... »

PAGES

261-267

References to SciGraph publications

  • 1993-12. Evaluation of plasma-sprayed tungsten for fusion reactors in JOURNAL OF THERMAL SPRAY TECHNOLOGY
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/bf02646969

    DOI

    http://dx.doi.org/10.1007/bf02646969

    DIMENSIONS

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