TITLE:
Investigation on Two-Body Abrasive Wear Behavior of Silicon Carbide Filled Glass Fabric-Epoxy Composites
AUTHORS:
N. Mohan, S. Natarajan, S.P. KumareshBabu, Siddaramaiah
KEYWORDS:
Two-body abrasive wear, Glass-fabric, Epoxy-composites, Silicon carbide, Impactstrength, Wear mechanisms.
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.9 No.3,
March
20,
2010
ABSTRACT: The effect of silicon carbide (SiC) particulate fillers incorporation on two-body abrasive wear
behaviour of Glass Fabric - Epoxy (GE) composites was investigated and findings are analysed.
The mechanical properties such as impact strength and surface hardness of the composites have
also been reported. The wear behaviour of the composites were performed using pin-on-disc
tester at varying abrasive distances viz., 25, 50, 75 and 100 m at a constant load of 10 N. The
experiment was conducted using two different water proof silicon carbide (SiC) abrasive papers
of 600 and 1000 grit size at a constant speed of 200 rpm under multi-pass condition. The wear
loss of the composites was found increasing with the increase in abrading distances. A
significant reduction in wear loss and specific wear rates were noticed after incorporation of SiC
filler into GE composite. This result indicates that the significant influence of SiC filler allowing
less wear of matrix during abrasion which in turn facilitates lower fiber damage, due to the
presence of SiC particles on the counter surface, which act as a transfer layer and effective
barriers to prevent large-scale fragmentation. The worn surface features, were examined
through scanning electron microscopy (SEM), in order to probe the wear mechanism.