ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The high-temperature friction and wear characteristics of different ceramics and ceramicmatrix composites (CMCs) incorporated with various solid lubricants have been investigated from roomtemper- ature to 1000oC. The solid lubricants considered in this paper include representative preciousmetals, hexagonal boron nitride, graphite, fluorides, soft oxides, chromates, sulfates, and combinations ofvarious solid lubricants. General design considerations relevant to solid lubrication were proposed on thebasis of friction and wear data of self-lubricating CMCs. The self-lubricating composites incorporatedwith SrSO4 or/and CaSiO3 exhibits low and stable friction coefficients of 0.2 to 0.3 and small wear rates inthe order of 10-6 mm3/Nm from room temperature to 800oC. The optimized composites appear to bepromising can- didates for long-duration, extreme environment applications with low friction and smallwear rate
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.1088.pdf
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