Abstract
In this study, graphene nanoplatelets (GNPs) decorated rare earth oxide CeO2 (CeO2@GNPs) were synthesized by alcohol thermal reaction method and used to reinforce GNPs/2024Al composites fabricated by a pressure sintering process. The results indicated that the decorating CeO2 particles could further promote the dispersion of the GNPs as well the binding of GNPs to the matrix. As a result, the as-prepared 0.5 wt.% CeO2@GNPs/2024Al composites exhibited yield strength and tensile strength increased by 21.1% and 24.7% compared to these of the matrix, respectively. It is better than the mechanical strength values of the composite enforced with the raw GNPs of the same quality. The optimization of GNPs dispersibility and interfacial bonding with Al matrix promotes its effective role in load-bearing strengthening.
Highlights
Since graphene was successfully separated in 2004, it has attracted attention due to its excellent tensile properties, strength, stiffness, and attractive functional properties such as high thermal conductivity and electrical conductivity [1,2,3,4,5,6,7]
The results of such literature all revealed the fact that graphene nanoplatelets (GNPs) could be an effective reinforcement to improve the mechanical properties of the aluminum matrix
Despite the developments in the field of nano-carbon reinforced aluminumbased materials, there are still some major challenges in the manufacture of graphenerevealed the fact that GNPs could be an effective reinforcement to improve the mechanical properties of the aluminum matrix
Summary
Since graphene was successfully separated in 2004, it has attracted attention due to its excellent tensile properties, strength, stiffness, and attractive functional properties such as high thermal conductivity and electrical conductivity [1,2,3,4,5,6,7]. The results of such literature all revealed the fact that GNPs could be an effective reinforcement to improve the mechanical properties of the aluminum matrix.
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