A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Self-lubrication of Al2O3/TiC/CaF2 ceramic composites in sliding wear tests and in machining processes
AbstractAl2O3/TiC ceramic composites with the additions of CaF2 solid lubricants were produced by hot pressing. Sliding wear tests against cemented carbide and dry machining tests on hardened steel were performed on these ceramic composites. Results showed that the ceramic composites exhibited self-lubricating property both in sliding wear tests and in machining processes. Scanning electron microscopy observations showed that a self-tribofilm was consistently formed on the wear surfaces, and the composition of the self-tribofilm was found to be mainly CaF2 solid lubricants. This self-tribofilm was formed by the releasing and smearing of CaF2 solid lubricants on the wear surface, acted as a lubricating additive between the sliding couple or on the tool–chip interface, protected the ceramics from severe wear by brittle microfracture, and significantly reduced the friction coefficient.
Self-lubrication of Al2O3/TiC/CaF2 ceramic composites in sliding wear tests and in machining processes
AbstractAl2O3/TiC ceramic composites with the additions of CaF2 solid lubricants were produced by hot pressing. Sliding wear tests against cemented carbide and dry machining tests on hardened steel were performed on these ceramic composites. Results showed that the ceramic composites exhibited self-lubricating property both in sliding wear tests and in machining processes. Scanning electron microscopy observations showed that a self-tribofilm was consistently formed on the wear surfaces, and the composition of the self-tribofilm was found to be mainly CaF2 solid lubricants. This self-tribofilm was formed by the releasing and smearing of CaF2 solid lubricants on the wear surface, acted as a lubricating additive between the sliding couple or on the tool–chip interface, protected the ceramics from severe wear by brittle microfracture, and significantly reduced the friction coefficient.
Self-lubrication of Al2O3/TiC/CaF2 ceramic composites in sliding wear tests and in machining processes
Deng, Jianxin (author) / Liu, Lili (author) / Yang, Xuefeng (author) / Liu, Jianhua (author) / Sun, Junlong (author) / Zhao, Jinlong (author)
2005-12-05
8 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2007
Study on Friction and Wear Properties of Graphite - ZTA Self - Lubrication Ceramic Composites
| British Library Online Contents | 1999
| British Library Online Contents | 2008
Reciprocating sliding wear studies on Si/SiC ceramic composites
| British Library Online Contents | 2011
| British Library Online Contents | 1996