Wear Perfomance of Ceramics in Ring/Cylinder Applications

Autor:	Keith F. Dufrane
Rok vydání:	1989
Předmět:	Materials science Metallurgy Tribology Nitride Carbide chemistry.chemical_compound Silicon nitride chemistry visual_art Materials Chemistry Ceramics and Composites Lubrication visual_art.visual_art_medium Silicon carbide Ceramic Composite material Heat engine
Zdroj:	12th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings
ISSN:	1551-2916 0002-7820
DOI:	10.1111/j.1151-2916.1989.tb06199.x
Popis:	In support of the efforts to apply ceramics to advanced heat engines, a study is being performed of the performance of ceramics at the ring/cylinder interface of advanced (low heat rejection) engines. The objective of the study, managed by the Oak Ridge National Laboratory, is to understand the basic mechanisms controlling the wear of ceramics and thereby identify means for applying ceramics effectively. Attempts to operate three different zirconias, silicon carbide, silicon nitride, and plasma-sprayed ceramic coatings without lubrication have not been successful because of excessive friction and high wear rates. Silicon carbide and silicon nitride perform well at ambient temperatures with fully formulated mineral oil lubrication, but are limited to temperatures of 500F because of the lack of suitable liquid lubricants for higher temperatures.
Databáze:	OpenAIRE
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