Article ID Journal Published Year Pages File Type
818580 Composites Part B: Engineering 2012 7 Pages PDF
Abstract

The influences of normal contact pressure and sliding velocity on self-lubricating property of PTFE-based composite filled with nano-serpentine particles were mainly studied in the range of 0.12–0.96 m/s and 1.43–8.55 MPa. For comparison, the friction and wear experiments of pure PTFE also were carried out under the same conditions. A scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS) were employed to examine the worn surfaces of PTFE/serpentine nanocomposite and transfer films. The experimental results showed that normal contact pressure and sliding velocity had significant effects on the tribological performances of PTFE/serpentine composite. Under different loads, the nanocomposite suffered from abrasive wear, fatigue wear and adhesive wear successively. And at different sliding velocity, the main wear mechanisms were abrasive wear and adhesive wear. SEM and EDS analyses indicated that the continuous and uniform transfer film generated on counterfaces acted as a solid lubricant, which was important to improve the self-lubricating property of PTFE/serpentine nanocomposite.

Related Topics
Physical Sciences and Engineering Engineering Engineering (General)
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