Akademik Veri Yönetim Sistemi
5. International Selcuk Scientific Research Congress, Konya, Türkiye, 14 - 15 Aralık 2024, cilt.1, ss.866-874
Recent
years have seen many investigations on polymer composites reinforced with
natural fibers in response to worries about environmental instability. It is
possible to attain reasonably good mechanical qualities with a smaller
environmental impact by using natural fibers, which are regarded as renewable
resources. Researchers have made several attempts to include them in
tribo-composites and examine their wear behavior. Since scratches on the
surfaces of polymeric materials impair mechanical performance, determining how
these materials respond to scratches under different operating conditions has
been the focus of interest for many researchers. This study investigated the
tribological performance of neat epoxy and wool felt/epoxy composites. The aim
of the study was to establish the relationship between material structure and
scratch behavior. Scratch tests were performed by applying the Rockwell
indenter to the surfaces under a load of 16 N at different speeds (5, 10, 15
mm/s) and at different repetition numbers (1, 5, 10). Following scratch tests
performed under various conditions, the scratch width of each sample was
determined using an optical profilometer, and then the scratch hardness values
were calculated. Scratch hardness decreased with increasing number of
repetitions. Wool felt/epoxy composites exhibited greater scratch resistance
than neat epoxy. Following scratch tests conducted under various conditions,
scanning electron microscope (SEM) was used to analyze the morphologies of the
scratched surfaces.