Fracture surface study of the Al-Gr composite homogenized in theliquid produced by SPS

سال انتشار: 1393
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 648

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شناسه ملی سند علمی:

COMPOSIT04_122

تاریخ نمایه سازی: 22 مهر 1394

چکیده مقاله:

To produce aluminum matrix composite reinforced with graphite particles, mixing of pure aluminum and graphite powders by a new method called homogenization in liquid phase was performed. The graphite content was chosen from zero to 4.5percent by weight of graphite in this study. Composite samples were produced using the dried powder by two ways: spark plasma sintering (SPS) and cold pressing and thereafter sintering in a vacuum furnace under different pressure, temperature and time. The microstructure was investigated by OM and SEM. The compression test were performed on the samples. Then, surfaces of fractureand the cross-section of samples were investigated using SEM and EDS analysis to illuminate the mechanism that cause increasing the compressive strength of the composite samples produced by this mixing method.

نویسندگان

H Pakdell Noghabi

Msc. Student, Department of Materials Engineering,Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

S.A Sajjadi

Professor, Department of Materials Engineering,Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

A Babakhani

Associate Professor, Department of Materials Engineering,Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran