Theoretical investigation of energetics and mechanical properties of intermetallics in copper clad aluminum composite

Shuwen Zheng; Changlong Yang; Mingcheng Sun; Che Tan; Junlong Duo

doi:10.1117/12.2635169

25 April 2022 Theoretical investigation of energetics and mechanical properties of intermetallics in copper clad aluminum composite

Shuwen Zheng, Changlong Yang, Mingcheng Sun, Che Tan, Junlong Duo

Author Affiliations +

Proceedings Volume 12244, 2nd International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2022); 122441F (2022) https://doi.org/10.1117/12.2635169
Event: 2nd International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2022), 2022, Guilin, China

Abstract

Copper, aluminum and their alloys have been widely used commercially in power industry. A full understanding of thermodynamic and mechanical properties is the basis for the development of these materials. In this work, a series of AlCu intermetallics are studied by first-principles calculations. Their lattice constants, energies and mechanical moduli vary with the composition change. It is found that Al2Cu and AlCu3 are ductile, but Al₃Cu₂ and AlCu are brittle. Al₃Cu₂, AlCu and AlCu₃ all show high mechanical moduli and hardness than Al and Cu. Among these intermetallics, AlCu has the highest hardness and should be the most effective strengthening phase. These results are expected to provide the guideline for the future property optimization on copper clad aluminum composites.

Citation Download Citation

Shuwen Zheng, Changlong Yang, Mingcheng Sun, Che Tan, and Junlong Duo "Theoretical investigation of energetics and mechanical properties of intermetallics in copper clad aluminum composite", Proc. SPIE 12244, 2nd International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2022), 122441F (25 April 2022); https://doi.org/10.1117/12.2635169

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