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논문 기본 정보

자료유형
학술저널
저자정보
Mahmut Can ?enel (Ondokuz Mayıs University) Mevlut Gurbuz (Ondokuz Mayıs University)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.27 No.7
발행연도
2021.1
수록면
2,438 - 2,449 (12page)

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In the present study, boron carbide and graphene-reinforced aluminum hybrid composites with various boron carbide (1,3, 6, 9, 12, 15, 30 wt%) and graphene nanoplatelets (GNPs) content (0.15, 0.30, 0.45 wt%) were produced by the powdermetallurgy method. The method consists of mixing, ultrasonic dispersing, mixing, fltering, drying, pressing, and sinteringprocesses. The apparent density, compressive strength, and Vickers hardness of the fabricated composites were determined bydensity meter, universal test machine, and micro Vickers hardness measurement device, respectively. The phase and microstructural analysis of the fabricated composites were analyzed using an X-ray difraction device and scanning electron microscope, respectively. The maximum apparent density (2.54±0.005 g/cm3), the highest Vickers hardness (109.8±1.5 HV),the best compressive strength (244±5 MPa), and minimum porosity (4.0%) were obtained at Al-30%B4C-0.15%GNPscomposite. The enhancement in Vickers hardness and compressive strength of Al-30%B4C-0.15%GNPs composite wasdetected as +293% and +190% compared with pure aluminum. In conclusion, it was detected that the mechanical strengthof Al-30B4C-GNPs composites improved up to 0.15 wt%GNPs content. After 0.15 wt%graphene content, the mechanicalstrength of Al-30B4C-GNPs composites decreased due to the agglomerated graphene nanoparticles.

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