TY - JOUR ID - 70011 TI - Fabrication of Nanostructured Cu matrix Nanocomposites by High Energy Mechanical Milling and Spark Plasma Sintering JO - Advanced Ceramics Progress JA - ACP LA - en SN - 2423-7477 AU - Akbarpour Arbatan, Mohammad Reza AU - Leisi Azar, Fariba AU - Alipour, Saeid AD - Department of Materials Engineering, University of Maragheh Y1 - 2015 PY - 2015 VL - 1 IS - 3 SP - 39 EP - 43 KW - Nanocomposite KW - Hardness KW - copper KW - SIC KW - Spark plasma sintering (SPS) DO - 10.30501/acp.2015.70011 N2 - Spark plasma sintering (SPS) is a sintering process that is capable of sintering hard worked powders in short times. This technique was used to fabricate bulk Cu and Cu-SiC nanocomposites. Pure Cu and mixed powders of Cu including 4 vol% of SiC nanoparticles were mechanically alloyed for 25 h and sintered at 750˚C under vacuum condition by SPS method. Microstructures of the materials were characterized using optical and scanning electron microscopes and x-ray diffraction patterns, and mechanical properties were evaluated by micro hardness tests. The results showed density values of 8.69 and 8.30 g/cm3 and hardness values over 105 and 128Hv for Cu and its nanocomposite respectively. The addition of nanoparticles retarded Cu matrix grain growth during SPS process and resulted in higher hardness of nanocomposite compared to non-reinforced copper. UR - https://www.acerp.ir/article_70011.html L1 - https://www.acerp.ir/article_70011_450b65f6153830d318f69e62981fbd7e.pdf ER -