This article reports on the preparation, characterization and experimental investigation of polyamide 6 (PA6) reinforced with alumina oxide (Al 2 O 3) and graphite composites. The test specimens were prepared in an injection-moulding machine by varying the weight proportions of Al 2 O 3 and graphite particles blended with PA6. The tribological properties of the composites were observed by using pin-on-disc wear test rig under dry sliding conditions. The worn surfaces of the composites were examined using scanning electron microscope. The addition of Al 2 O 3 and graphite significantly enhanced the tribological properties of PA6. The PA6 containing 30 wt% Al 2 O 3 and 20 wt% graphite revealed the best tribological behaviours due to the stronger interfacial bonding characteristics with improved wear resistance. Further, the thermal stability of Al 2 O 3 and graphite particles was studied through thermogravimetric analysis test. It was also found that further addition of Al 2 O 3 and graphite in PA6 had no significant improvement in wear resistance, the coefficient of friction and heat generation.
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