한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)
- 제1권2호
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- Pages.89-102
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- 1993
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- 1225-6382(pISSN)
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- 2234-0149(eISSN)
플라즈마용사 세라믹코팅의 실린더라이너 적용위한 마찰 마모특성 연구
Tribological Behaviour of Plasma Sprayed Ceramic Coatings for the Application to the Cylinder Linerin Engines
초록
In this experimental investigation, various plasma-sprayed zirconia contained coatings and a kind of alumina-zirconia coating were studied to gain a better understanding of their tribological behaviour under dry contact condition in a reciprocating motion at temperature of 200℃. Particular attention was made for finding appropriate coatings in cylinder liner/piston ring application with an emphasis on the antiwear property. In order to identify the wear mechanism, SEM(Scanning Electron Microscope), optical micrograph, and roughness tester were used. Alumina-zirconia and 8% yttria-zirconia were found to be most appropriate for the application to the cylinder liner/piston ring and, especially, alumina-zirconia exhibited highest wear-resistance and also showed good friction characteristics. Wear mechanisms of ceramic coatings identified.
키워드