Cover
Vol. 26 No. 1 (2026)

Published: July 28, 2026

Pages: 44-51

Research Article

Experimental Study of Thermal Conductivity and Glass Transition Temperature of Epoxy/AI2O3 Composites

Shams J. Mohammed 1 Abdul Kareem F. Hassan 2
1 Mechanical Engineering Department, College of Engineering, University of Basrah, Basrah, Iraq
2 College of Engineering, Almaaqal University, Basrah, Iraq
History
  • Received: February 14, 2026
  • Revised: May 11, 2026
  • Accepted: May 20, 2026
  • Available Online: July 28, 2026
DOI

https://doi.org/10.33971/bjes.26.1.6

Abstract

This study aims to evaluate the effect of adding alumina particles at specific ratios on the thermal properties of the epoxy-alumina composite. The hand lay-up technique was employed using a gravity molding process. Six samples’ specimens with dimensions specified by the International Standard (ASTM) were prepared with the specified volume ratios of alumina (0%, 10%, 20%, 40%, 50%, and 60%). X-Ray Diffraction (XRD) was conducted, and according to the Lee's principle the thermal conductivity was measured. The results showed that increasing the concentration of the alumina filler significantly enhances the thermal conductivity of the composite, reaching approximately 1.25 W/m.K at a loading of 60%. Moreover, the differential scanning calorimetry (DSC) analysis of the DSC conducted on samples containing (0%, 40%, and 60% AI2O3) only shows that the glass transition temperature (Tg) gradually increases with the increase in alumina content, reaching 138.92°C at 60% AI2O3. These results confirm the suitability of the developed composite for efficient thermal management in advanced engineering applications.

Keywords

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