An Overview of Metal Matrix Nanocomposites Reinforced with Graphene Nanoplatelets; Mechanical, Electrical and Thermophysical Properties

Abstract

Two-dimensional graphene nanoplatelets with unique electrical, mechanical and thermophysical characteristics are considered as an interesting reinforcement to develop new lightweight, high-strength, and high-performance metal matrix nanocomposites. On the other hand, by the rapid progress of technology in recent years, development of advanced materials like new metal matrix nanocomposites for structural engineering and functional device applications is a priority for various industries. This article provides an overview of research efforts with an emphasis on the fabrication and characterization of different metal matrix nanocomposites reinforced by graphene nanoplatelets (GNPs). Particular attention is devoted to find the role of GNPs on the final electrical and thermal conductivity, the coefficient of thermal expansion, and mechanical responses of aluminum, magnesium and copper matrix nanocomposites. In sum, this review pays specific attention to the structure-property relationship of these novel nanocomposites.

Development of Novel AlSi10Mg Based Nanocomposites: Microstructure, Thermal and Mechanical Properties

“…For instance, the interface bonding between reinforcement and matrix has a significant role in the load transfer from the matrix to reinforcement [32,33]. This finding is also reported in the literature about the MMNCs reinforced by GNPs [26]. The FESEM images of the fracture surface of the AlSi10Mg nanocomposites with different GNPs contents are shown after the tensile test at ambient temperature.…”

“…However, in the case of AlSi10Mg-GNPs nanocomposites with high GNPs contents, some large agglomerates of GNPs can be seen at the grain boundaries (Figure 3c,d), which occur as a result of Pi-Pi interaction between graphene nanoplatelets. Therefore, according to the findings of the previous works, it can be expected that this agglomerate formation adversely affects the mechanical performance of nanocomposite [26]. The porosity evaluation of samples was performed via image analysis method on five images per sample, and the average values are reported as the average porosity content of samples.…”

From Ni–P Metastable Alloy Nanoparticles to Bulk Submicrometer Grain-Sized MMCs with Tunable Mechanical and Magnetic Properties

“…The presence of a secondary phase (Ni 3 P). Indeed, compared with single-phase samples with the same particle size, the presence of a secondary phase strengthens the microstructure and leads to higher values of microhardness and yield strengths [36,37]. -…”

Graphene Family Nanomaterial Reinforced Magnesium-Based Matrix Composites for Biomedical Application: A Comprehensive Review

“…The immobilization of CNT and Gr in metallic biomaterials prevents the exposure of adjacent tissues, therefore providing biosafety for these kinds of particles [47]. It is worth noting that the application of biodegradable Mg-GFN composites fabricated through various fabrication procedures and structural modifications for load-bearing implant process for bone substitution and reproduction attracts a huge amount of attention [166][167][168][169][170][171][172][173][174][175][176][177][178][179][180]. Taking into consideration the outstanding biological response and incredible mechanical characteristics of Gr, as described in earlier sections, it is anticipated that a number of implants and scaffolds will be created in the near future.…”