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Impregnation of thermally sprayed coatings for microstructural studies

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Abstract

Sprayed coatings are normally impregnated with an epoxy prior to metallographic specimen preparation procedures. The effect of specimen impregnation technique on the structural and microhardness measurements of sprayed coatings has been evaluated. Independent, simultaneous, and controlled evacuation of both the specimen and the resin ensures complete impregnation of pores, yielding metallographic specimens with minimum abrasive loss and minimum scatter in the measured coating properties.

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Authors and Affiliations

  1. Laser and Plasma Technology Division, Bhabha Atomic Research Centre, 400085, Bombay, India

    J. Karthikeyan

  2. Thermal Spray Laboratory, Department of Materials Science and Engineering, State University of New York, 11794-2275, Stony Brook, NY, USA

    J. Karthikeyan

  3. Atomic Fuels Division, Bhabha Atomic Research Centre, 400085, Bombay, India

    A. K. Sinha & A. R. Biswas

Authors
  1. J. Karthikeyan
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  2. A. K. Sinha
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  3. A. R. Biswas
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Karthikeyan, J., Sinha, A.K. & Biswas, A.R. Impregnation of thermally sprayed coatings for microstructural studies. JTST 5, 74–78 (1996). https://doi.org/10.1007/BF02647521

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  • DOI: https://doi.org/10.1007/BF02647521

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