_____________________________________________________________________________________________________ *Corresponding author: Email: mtayea00@gmail.com; Journal of Engineering Research and Reports 15(4): 35-44, 2020; Article no.JERR.60042 ISSN: 2582-2926 The Role of Nano-SiC on Microstructure and Tribo- logical Properties of SiC/Cu Nano-Composite M. A. Metwally 1* , M. M. Sadawy 2 , M. Ghanem 3 and I. G. El-Batanony 4 1 Egyptian Natural Gas Company (GASCO), Cairo, Egypt. 2 Mining and Petroleum Engineering Department, Faculty of Engineering, Al-Azhar University, Nasr City, Cairo, Egypt. 3 Industrial Education, Suez University, Suez, Egypt. 4 Mechanical Engineering Department, Faculty of Engineering, Al-Azhar University, Nasr City, Cairo, Egypt. Authors’ contributions This work was carried out in collaboration among all authors. Author MAM designed the study, performed the analyses, wrote the protocol and wrote the first draft of the manuscript. Authors MMS, MG and IGEB managed the analyses of the study. All authors read and approved the final manuscript. Article Information DOI: 10.9734/JERR/2020/v15i417153 Editor(s): (1) Dr. David Armando Contreras-Solorio, Autonomous University of Zacatecas, Mexico. Reviewers: (1) Claudia Trindade Oliveira, ICCT- Feevale University, Brazil. (2) B. Sathyaseelan, Anna University, India. Complete Peer review History: http://www.sdiarticle4.com/review-history/60042 Received 05 June 2020 Accepted 10 August 2020 Published 17 August 2020 ABSTRACT The present study has investigated the role of nano-SiC on microstructure and tribological properties of SiC/Cu nano-composite. The nano-composite powders have been cold compacted under a constant pressure of 480 MPa and sintered at 860 0 C under argon gas for 2 h. SEM-EDS and XRD diffraction were performed for microstructure examinations. Pin-on-disk experiments were carried out under wet conditions (3.5 wt. % NaCl solution). All samples have been investigated against abrasives of different sizes (from 7, 13, 20 and 26 µm), at different applied loads (10, 15, 20 and 25 N), and sliding speed (0.25, 0.5, 0.75 and 1.0 m/s). The results revealed that the grain structure of the copper matrix was reduced with increasing SiC nano-particles. Furthermore, it was found that the wet wear resistance was improved as a function of nano-SiC content. Keywords: Powder metallurgy; composites; grain size; wet wear resistance. Original Research Article