Effect of SiC Content and Hot Compaction on the Microstructure, Thermal, Mechanical, and Tribological Characteristics of Aluminum Matrix Nanocomposites Produced via Powder Metallurgy

Elmashad, Ahmed M; Hassan, A. El-Sayed M.; El-Sheikh, Mohamed N.; Mohammed, Moustafa M.; Okail, Mohamed; Irfan, Osama; Abu-Oqail, A. M.I.

doi:10.21608/jesaun.2025.382488.1503

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	Effect of SiC Content and Hot Compaction on the Microstructure, Thermal, Mechanical, and Tribological Characteristics of Aluminum Matrix Nanocomposites Produced via Powder Metallurgy
Article 7, Volume 53, Issue 6, November and December 2025, Page 211-236 PDF (2.22 MB)
Document Type: Research Paper
DOI: 10.21608/jesaun.2025.382488.1503
View on SCiNiTO
Authors
ahmed M Elmashad ¹; A. El-Sayed M. Hassan¹; Mohamed N. El-Sheikh¹; Moustafa M. Mohammed¹; Mohamed Okail²; Osama Irfan³; A. M.I. Abu-Oqail¹
¹Production Technology Department, Faculty of Technology and Education, Beni-Suef University, Beni-Suef, Egypt.
²Manufacturing Engineering and Production Technology Department, Modern Academy for Engineering and Technology, Cairo, P.O. Box 11571, Egypt.
³Department of Mechanical Engineering, College of Engineering, Qassim University, Saudi Arabia
Abstract
This study investigation the effect of silicon carbide (SiC) content and hot compaction temperature on the microstructural, mechanical, tribological, and physical properties of Al/SiC nanocomposites. Composites were synthesized via high-energy ball milling followed by hot compaction, with SiC varied at 2.5, 5, 7.5, and 10 wt.% and compaction temperatures set at 500 °C, 550 °C, and 600 °C. SEM analysis confirmed uniform dispersion of SiC particles within the aluminium matrix, particularly in the Al/5 wt.% SiC composite. The highest relative density was achieved by the Al/5 wt.% SiC sample compacted at 600 °C. This composition also demonstrated the most notable enhancements in performance, with improvements of 135% in wear resistance, 87% in compressive strength, and 82% in hardness compared to unreinforced aluminium. These results suggest that a 5 wt.% SiC reinforcement and 600 °C compaction temperature offer an optimal balance of properties for structural applications, highlighting the significance of processing parameters in tailoring composite behaviour.
Keywords
Al aluminium matrix composites; hot compaction; mechanical properties; tribological behaviour; SiC
Main Subjects
Mechanical, Power, Production, Design and Mechatronics Engineering.


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