Abstract:
In this paper, a summary of previous studies on tribo-engineering materials is introduced. In addition, tribilogical investigations on chopped strand mat glass fibers (CSM) reinforced polyester (CGRP) and neat polyester (NP) are evaluated under dry contact condition using Block-on-Ring (BOR) technique. The effects of parallel and anti-parallel orientations of (CSM), load (30-100N), sliding velocity (2.8 and 3.9ms), and sliding distance (1.2-7 km) were studied. Weight loss friction coefficient and interface temperature of both materials were measured and presented as a function of applied load. Scanning electron microscopy (SEM) was conducted to better understand the damage features of the worn surfaces. Results revealed that substantial improvement in the wear and friction characteristics of neat polyester was achieved by reinforcement with CSM. Wear and friction behavior of both CGRP composite and neat polyester are strongly dependant on test parameters. Furthermore lower weight loss friction coefficient and interface temperature was evident when CGRP composite was tested in parallel orientation. SEM showed different damage features in CGRP composite and NP such debonding of fibers, matrix deformation, crack and break of fibers.
Page(s):
11-18
DOI:
DOI not available
Published:
Journal: Science International, Volume: 19, Issue: 1, Year: 2007