Interface and mechanical/thermal properties of graphene/copper composite with Mo2C nanoparticles grown on graphene

By K. Chu, Fan Wang, Yu‐biao Li, Xiao-hu Wang, Da-jian Huang, Zhongxing Geng. Composites. Part A, Applied science and manufacturing, 2018

225 citations recorded by the source corpus.

Abstract Mo 2 C nanoparticles grown on reduced graphene oxide (Mo 2 C@RGO) were used to prepare the Mo 2 C@RGO/Cu composite. The Mo 2 C nanoparticles played a bridging role in not only being firmly attached on RGO but also forming a semi-coherent interface with the Cu matrix, leading to strong interfacial bonding of the composites. The 1 vol% Mo 2 C@RGO/Cu composite exhibited a yield strength of 238 MPa, 58% and 127% higher than that of 1 vol% RGO/Cu composite and pure Cu, respectively. The strengthening mechanism of Mo 2 C@RGO/Cu composite relied on the dual role of Mo 2 C nanoparticles that not only enhanced the load transfer strengthening of RGO but also provided the possible Orowan strengthening themselves. Nevertheless, the Mo 2 C@RGO/Cu composite showed a drop in coefficient of thermal expansion but a reduced thermal conductivity compared to pure Cu and the RGO/Cu composite. This study provides new insights into the interface structure, strengthening mechanism and thermal behavior of carbide-modified graphene/metal composites.

Subfields: Materials Chemistry, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/7c2bc4c066f397819f066b3ecdf9740f1d521828

Citations in the corpus

• Progress in research on hybrid metal matrix composites (2020, unknown): “Chu et al. [154] demonstrated that Mo 2 C nanoparticles fi rmly attached on RGO can lead to an enhanced reduction in CTE, much higher mechanical performance but a decreased thermal conductivity for hybrid Mo 2 C þ RGO/Cu composites compared to RGO/Cu composites and pure Cu.”