Friction and wear of epoxy/TiO2 nanocomposites:: Influence of additional short carbon fibers, Aramid and PTFE particles

被引：87

作者：

Xian, Gujun ^{[1
]}

Walter, Rolf ^{[1
]}

Haupert, Frank ^{[1
]}

机构：

[1] Tech Univ Kaiserslautern, Inst Composite Mat, D-67663 Kaiserslautern, Germany

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2006年 / 66卷 / 16期

关键词：

carbon fibers; friction/wear; mechanical properties; scanning electron microscopy; nanocomposite;

D O I：

10.1016/j.compscitech.2005.02.022

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

An epoxy-based nanocomposite containing graphite powder (7 vol%) and nano-scale TiO2 (4 vol%) was developed for tribological evaluation. A series of composites containing additional fillers such as short carbon fibers (SCF), Aramid and polytetrafluoroethylene (PTFE) particles was developed and evaluated in adhesive and low amplitude oscillating wear modes. The incorporation of SCF and Aramid particles resulted in a remarkable improvement in the sliding wear resistance. However, SCF impaired the low amplitude oscillating wear resistance. The further addition of PTFE to the SCF filled nanocomposites reduced the friction and wear under both wear conditions. However, an adverse effect of PTFE was found for the Aramid particles filled nanocomposites. Under sliding conditions, the lowest wear rate and coefficient of friction showed the 2-4 vol% PTFE filled SCF nanocomposite. Aramid particles containing nanocomposites (without PTFE) exhibited the best wear and friction behavior under low amplitude oscillating wear conditions among the selected composites. The wear mechanisms were studied by scanning electron microscopy. (c) 2005 Published by Elsevier Ltd.

引用

页码：3199 / 3209

页数：11

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