Analysis of thermo-elastic and physical properties of recycled 2017 Aluminium Alloy/Gp composites: thermal management application

Abstract

This paper investigates the use of graphite in 2017 Aluminium matrix composite for thermal management systems by analyzing their thermo-elastic behavior. The composite samples were prepared with different graphite contents using powder metallurgy method based on recycled 2017 Aluminium alloy powder. The distribution of graphite particles in the 2017 Aluminium alloy matrix was investigated by a scanning electron microscope (SEM). Sintered densities of the composite samples were examined by a gravimetric method and it is noticed that in the fact of increasing the graphite content decreases the densification of composites which is confirmed by SEM analysis. Thereafter, the obtained samples were analyzed by dilatometry through measuring the coefficient of thermal expansion (CTE), which showed a decrease with the addition of graphite.

Keywords

• Aluminium recycling
• Aluminium matrix composites
• microstructure
• sintered density
• coefficient of thermal expansion (CTE)