Effect of Copper Addition on the Thermal Conductivity of Aluminum-Alumina Composites

DOI

10.2991/978-94-6463-768-7_12How to use a DOI?

Keywords

Aluminum-Alumina Composite; Copper; Thermal Conductivity

Abstract

Aluminum-alumina composites are solid thermal energy storage (TES) materials characterized by high strength and hardness. Solar water heating system collectors can apply these composites due to their ability to operate at low temperatures. The addition of copper to aluminum-alumina composites is believed to enhance the material’s heat absorption and storage capabilities. This study aims to investigate the effect of copper addition on the thermal properties of these composites, particularly thermal conductivity. Aluminum-alumina composites were fabricated using powder metallurgy techniques, incorporating copper at mass fractions of 5%, 10%, and 15%. The composite specimens were produced through cold compaction at a measured pressure of 20–25 MPa. Subsequently, all specimens were sintered in a furnace at 550℃ for 30 minutes. The microstructure of the composites was analyzed using a scanning electron microscope (SEM). Thermal conductivity was measured using a thermal conductivity apparatus. The results indicate that an increase in copper content leads to higher thermal conductivity values in the composites. The thermal conductivity values, from highest to lowest, were recorded as 6.47 W/m.°C, 2.23 W/m.°C, and 1.28 W/m.°C. While aluminum remains the dominant element, the presence of copper influences the formation of material phases and microstructural characteristics. These changes affect physical properties such as particle bonding strength and thermal stability, thereby impacting the overall thermal conductivity of the material.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Muhammad Hasan Basri
AU  - Zikri Arifansyah Djaba
AU  - Muhammad Iqbal Ibrahim
AU  - Ramang Magga
AU  - Yulistiansah
AU  - Hidayat Hidayat
PY  - 2025
DA  - 2025/07/07
TI  - Effect of Copper Addition on the Thermal Conductivity of Aluminum-Alumina Composites
BT  - Proceedings of the 3rd International Conference on Science in Engineering and Technology (ICOSIET 2024)
PB  - Atlantis Press
SP  - 103
EP  - 111
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-768-7_12
DO  - 10.2991/978-94-6463-768-7_12
ID  - Basri2025
ER  -