Wear characteristic of epoxy resin filled with crushed-silica particles

The dry-sliding wear of epoxy resin filled with 68.5 wt.% of crushed-silica particles (20-40 mu m) were evaluated using pin-on-disk tests. At low sliding speeds, the bulk temperatures at contacts were below glass-transition temperature (<T(g)); the wear process was time dependence. The volume loss increased with increasing sliding speed. Wear mechanisms were either abrasive wear or abrasive wear and particle detachment with epoxy-matrix deformation at low temperature. The wear process became temperature dependence at high sliding speeds (>T(g)), i.e. the volume loss decreased with increasing sliding speed. Wear mechanisms were abrasive wear and particle detachment with epoxy-matrix deformation at high temperature. (C) 2011 Elsevier Ltd. All rights reserved.