Characterization of Aluminum Matrix Composites Reinforced with Al۲O۳, SiC and Graphene Fabricated by Spark Plasma Sintering
- سال انتشار: 1400
- محل انتشار: مجله علم مواد و مهندسی ایران، دوره: 18، شماره: 4
- کد COI اختصاصی: JR_IJMSEI-18-4_010
- زبان مقاله: انگلیسی
- تعداد مشاهده: 153
نویسندگان
Faculty of Materials and Metallurgical Engineering, Semnan University
Faculty of Materials and Metallurgical Engineering, Semnan University
Faculty of Materials and Metallurgical Engineering, Semnan University
چکیده
In this study, aluminum matrix composites reinforced with Al۲O۳ and SiC nanoparticles, and graphene nanoplatelets produced by Spark Plasma Sintering (SPS) were studied. The microstructural and mechanical properties of the composites were evaluated by changing the amounts of the reinforcing materials. The SEM images showed that the reinforcing particles were more distributed in the grain boundary regions. According to the results, the addition of alumina and SiC to the matrix caused an increase in the composite density whereas the composite density decreased by adding graphene nanoplatelets. The highest relative density of ۹۶.۳% was obtained for the composite containing ۲ wt% Al۲O۳. The presence of the reinforcing particles increased the hardness of all the samples compared to the pure aluminum (۳۹ HV). The composite containing ۱ wt.% Al۲O۳, ۰.۷ wt.% SiC, and ۰.۳ wt.% graphene showed the highest hardness of ۷۹ HV. Moreover, the plastic deformation of the specimens decreased and the slope of the plastic region increased by adding the reinforcing particles to the matrix.کلیدواژه ها
Al composite, Spark Plasma Sintering, graphene nanoplatelets, Al۲O۳ and SiCاطلاعات بیشتر در مورد COI
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