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Journal of Materials Science

, Volume 19, Issue 1, pp 254–258 | Cite as

Hertzian indentation of sintered alumina

  • M. T. Laugier
Article

Abstract

Hertzian indentation experiments have been performed on sinteredα-Al2O3 using WC-Co spheres with radii in the range 0.5 to 6.5 mm. The critical loadP* to cause ring cracking was proportional to indenter radiusR which is consistent with Auerbach's law. Values of room temperature fracture surface energy,γ, and fracture toughness,K1C, were derived using the theories of Frank and Lawn and Warren.

Keywords

Polymer Alumina Surface Energy Fracture Surface Fracture Toughness 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman and Hall Ltd 1984

Authors and Affiliations

  • M. T. Laugier
    • 1
  1. 1.Hard Materials Research CentreSandvik LimitedCoventryUK

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