Investigation of the Mechanical and Tribological Behavior of Epoxy-Based Hybrid Composite

Thamer Albahkali, Ahmed Fouly, Ibrahim A. Alnaser, Mahmoud B. Elsheniti, Ahmed Rezk, Hany S. Abdo

Research output: Contribution to journalArticlepeer-review


The main target of this study is to evaluate the impact of hybrid reinforcement using Al2O3 nanoparticles and graphite on the epoxy nanocomposites’ mechanical and tribological properties. Various weight fractions of the reinforcement materials, ranging from 0 to 0.5 wt.%, were incorporated into the epoxy. The aim is to enhance the characteristics and durability of the polymers for potential utilization in different mechanical applications. The addition of hybrid additives consisting of Al2O3 nanoparticles and graphite to the epoxy resin had a noticeable effect on the performance of the epoxy nanocomposites. The incorporation of these additives resulted in increased elasticity, strength, toughness, ductility, and hardness as the concentration of reinforcement increased. The enhancement in the stiffness, mechanical strength, toughness and ductility reached 33.9%, 25.97%, 25.3% and 16.7%, respectively. Furthermore, the frictional tests demonstrated a notable decrease in both the coefficient of friction and wear with the rise of the additives’ weight fraction. This improvement in the structural integrity of the epoxy nanocomposites led to enhanced mechanical properties and wear resistance. The SEM was utilized to assess the surfaces of tested samples and provide insights into the wear mechanism.
Original languageEnglish
Article number3880
Number of pages1
Issue number19
Publication statusPublished - 25 Sept 2023

Bibliographical note

© 2023 by the authors.
Licensee MDPI, Basel, Switzerland.
This article is an open access article
distributed under the terms and
conditions of the Creative Commons
Attribution (CC BY) license (https://

Funding: Grant Number (IFKSUOR3-107-2).


  • ceramic additives
  • epoxy nanocomposite
  • hybrid reinforcement
  • solid lubricant
  • tribological performance


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