Wear mode map of ceramics

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5 Citations (Scopus)

Abstract

Based on in-situ observations of wear processes in a scanning electron microscope, the mechanical wear mechanisms for ceramics are classified into three microscopic wear modes : flake formation, powder formation and ploughing. The condition for the occurrence of each wear mode is analyzed theoretically by using a linear fracture mechanics. Based on this analysis, two wear mode maps for ceramics are introduced by using the dimensionless parameters Sc, Sc* and the coefficient of friction μ, where Sc is a function of maximum Hertzian contact pressure, maximum surface roughness and fracture toughness. The wear mode map using Sc and μ show the possible region of flake formation. The wear mode map using Sc* and μ show the possible regions of powder formation and ploughing. Experimental results of several ceramics under different experimental conditions agree well with the above wear mode maps for ceramics.

Original languageEnglish
Pages (from-to)353-358
Number of pages6
JournalWear of Materials: International Conference on Wear of Materials
Volume1
Publication statusPublished - 1991
Externally publishedYes
EventInternational Conference on Wear of Materials - Orlando, FL, USA
Duration: 1991 Apr 71991 Apr 11

ASJC Scopus subject areas

  • Mechanics of Materials

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