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A Fracture Mechanics Approach to Wear Mechanism of Ceramics Under Non-conformal Rolling Friction

Authors
  • Kim, Jong-Hyoung1
  • Choi, Si-Geun1
  • Kim, Seock-Sam2
  • 1 KITECH, Extreme Fabrication Technology Group, 320 Techno Sunhwan-ro, Daegu, 42994, Republic of Korea , Daegu (South Korea)
  • 2 Universiti Malaysia Sabah, Department of Mechanical Engineering, Faculty of Engineering, Kota Kinabalu, Sabah, 88400, Malaysia , Kota Kinabalu (Malaysia)
Type
Published Article
Journal
International Journal of Precision Engineering and Manufacturing
Publisher
Korean Society for Precision Engineering
Publication Date
Apr 25, 2019
Volume
20
Issue
6
Pages
983–991
Identifiers
DOI: 10.1007/s12541-019-00119-8
Source
Springer Nature
Keywords
License
Yellow

Abstract

Ceramics materials have some useful tribological properties. Therefore, they are used in a variety of industrial fields, which strongly require the severity of operating condition and higher reliability of tribosystem. In this paper, silicon nitride, silicon carbide, cermet, titania and alumina were tested under rolling friction to evaluate wear rate and clarify wear mechanism of ceramic materials based on fracture mechanics. From the experimental result, a wear model of ceramic materials was proposed and analyzed using linear elastic fracture mechanics. Finally, the new non-dimensional parameter, Sc, for the estimation of the ceramic wear rate was introduced and a wear equation was obtained.

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