Wear and wear transition mechanism in silicon carbide during sliding
- Korea Research Inst. of Standards and Science, Taejon (Korea, Republic of). Materials Evaluation Center
- Kyunpook National Univ., Taegu (Korea, Republic of). Dept. of Mechanical Engineering
Wear mechanisms in SiC during sliding have been investigated experimentally under paraffin oil lubrication. The wear and friction data indicate that a transition in wear mechanism occurs abruptly after a defined period of sliding. The transition point is reached earlier as load increases. Examination of wear samples reveals that surface material is predominantly removed by a plastic grooving process in the initial stage and by a grain pull-out process after the transition. It is also observed that severe plastic deformation in the form of dislocations is produced during the sliding. The abrupt occurrence of the grain pull-out after a definite sliding time is discussed in relation to the internal stress associated with this plastic deformation.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 82603
- Journal Information:
- Journal of the American Ceramic Society, Journal Name: Journal of the American Ceramic Society Journal Issue: 4 Vol. 78; ISSN 0002-7820; ISSN JACTAW
- Country of Publication:
- United States
- Language:
- English
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