期刊
MECHANICS OF COMPOSITE MATERIALS
卷 45, 期 2, 页码 199-206出版社
SPRINGER
DOI: 10.1007/s11029-009-9071-z
关键词
nanocomposite; stiffness; strength; wear rate; abrasion resistance
资金
- Bundesministerium fur Bildung und Forschung (BMBF) [03X5500]
- Deutsche Forschungsgemeinschaft (DFG) [FR 675/44-1]
- [FR675/45-1]
Nano-zinc sulfide (ZnS)- and nano-titanium dioxide (TiO(2))-reinforced polyetheretherketone (PEEK) composites for use under extreme mechanical and tribological loads were developed and investigated systematically. The nanocomposites were manufactured with particle concentrations of 1 to 15 vol.% by using an optimized twin-screw extrud er technology. A simultaneous increase in the strength and elastic modulus of PEEK and an improvement in the tribological properties of PEEK/ZnS compounds were observed. Also, the specific wear rate decreased with increasing ZnS content, reaching its minimum at 3 vol.%. This minimum corresponded to a 60% reduction in the wear rate com pared with that of the neat PEEK. A wear map was re corded for the 3 vol.% composite, which depicted the in fluence of the sliding speed and the normal force on the wear rate over a wide range of parameters.
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