The Influence of Graphene Nanoplatelets Addition on the Electrical and Mechanical Properties of Pure Aluminum Used in High-Capacity Conductors

Abstract

The main objective of this research is to assess a graphene/Al nanocomposite with a higher strength and conductivity for use in high-capacity conductors in power transmission lines. In this study, the graphene/Al nanocomposite and pure aluminum specimens were prepared using ball milling of aluminum and graphene powders, the mechanical-electromagnetic stirrer casting process, hot extrusion and finally, annealing. The microstructural, mechanical and electrical behavior of the Al 1350 nanocomposite cast reinforced with 0.5 wt% graphene and unreinforced aluminum were studied at 20 °C and 180 °C temperatures. The results revealed that, by adding graphene to pure aluminum, the tensile strength, toughness and electrical conductivity increased, but the elongation of the Al–0.5 wt% GNP composite decreased at both temperatures.

Effect of Short Heat Treatments on the Microstructural Evolution and Hardness of Thixoformed Graphene Reinforced Aluminium Composites

“…In addition, the increase of hardness may also be concluded from the precipitation and distribution of fine Mg 2 Si after short T6 heat treatment. Furthermore, the superior mechanical characteristics possessed by graphene offered the necessary force to inhibit the distortion during the indentation, which improved the hardness of GNP-A356 composites (Azizi, Rahmani & Taheri-Behrooz 2022).…”

Prediction of nano metal matrix composites based on hybrid approach

“…Aluminium and its alloys are highly desired due to their low thickness, strong electrical and thermal conductivity, and capacity to be reinforced by rain, excellent resistance to corrosion and high damping range 10,11 . The production of MMCs employs a variety of techniques 12,13 …”

“…10,11 The production of MMCs employs a variety of techniques. 12,13 The forms, sizes, and chemical interactions of the reinforcing components influence the microstructure, physical properties, tri-biological properties, and other desirable features of the composite during the production process. 14,15 However, developing the desired characteristics of food and ceramics in the MMC and identifying the precise application of composites' best properties.…”