Characterization of Y2O3 and/or SiC Reinforced Al on Tribological Behaviour

This study acknowledges the use of ceramics, such as SiC and/or Y2O3, in the stir casting technique for the producing AMMCs. Hardness, coefficient of friction and wear behavior of the prepared MMCs were evaluated. The results of the testing showed that the unreinforced matrix was not as hard as the reinforced matrix (16%). Wear resistance raised steadily due to the SiC and Y2O3 particle loading, both alone and in combination. Using Optical and scanning electron microscopes (SEM) to examine the microstructure and worn surface, it was discovered that mechanically mixed layers of SiC and Y2O3 had formed. These layers acted as an effective insulating surface, preventing the test sample surface from contacting the zirconia pins. weight loss decreased when the reinforcing materials were changed, and at 5% SiC, notable wear resistance was attained.