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Fracture toughness of thermal spray ceramic coatings determined by the indentation technique

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Abstract

The indentation technique for determining material toughness is applied to spinel and yttria-stabilized zirconia plasma-sprayed coatings in this investigation. Fracture toughness of the coatings ranged from 1.9 to 3.4 MPa√m for spinel and 2.0 to 3.3 MPa√m for yttria-stabilized zirconia. These results are in good agreement with those obtained by other experimenters for bulk materials.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, University of Wisconsin, Madison

    G. K. Beshish, C. W. Florey & F. J. Worzala

  2. Fisher Barton Corporation, Watertown, Wisconsin

    W. J. Lenling

Authors
  1. G. K. Beshish
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  2. C. W. Florey
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  3. F. J. Worzala
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  4. W. J. Lenling
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Beshish, G.K., Florey, C.W., Worzala, F.J. et al. Fracture toughness of thermal spray ceramic coatings determined by the indentation technique. JTST 2, 35–38 (1993). https://doi.org/10.1007/BF02647421

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