A study on the friction and wear behavior of PTFE filled with ultra-fine kaolin particulates

被引：43

作者：

Xiang, DH ^{[1
]}

Gu, CJ ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Peoples R China

来源：

MATERIALS LETTERS | 2006年 / 60卷 / 05期

关键词：

composite materials; wear; friction; polytetrafluoroethylene (PTFE); kaolin clay;

D O I：

10.1016/j.matlet.2005.09.061

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A solid lubricant composite material was made by compression molding PTFE and ultra-fine kaolin particulates. Composites from 0 to 15 wt. % were prepared. These composites were tested against a 45 carbon steel counterface on a reciprocating tribometer. The experimental conditions were a contact pressure of 7.5 MPa, a stroke length of 15 mm, and a reciprocating frequency of 1 Hz. The friction coefficient of the composites increased over unfilled PTFE from roughly 0.12 to 0.22, at filler concentrations of 10 wt.%, the wear resistance improved by almost two orders of magnitude as compared to the unfilled PTFE. Wear testing and SEM analysis showed that adhesive wear was probably the dominant mode of failure for a PTFE-10 wt.% kaolin composite. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：689 / 692

页数：4

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