title: Graphene damage effects on radiation-resistance and configuration of copper-graphene nanocomposite under irradiation: A molecular dynamics study.
abstract: Metal-graphene nanocomposite is a kind of potential radiation tolerant material. Graphene damage of the composite is inevitable within radiation environments. In this paper, two kinds of copper-graphene nanocomposite (CGNC) systems containing perfect graphene and prefabricated damage graphene, respectively, were adopted to expound the influences of graphene damage on the properties (radiation-resistance and configuration) of CGNC under irradiation by atomistic simulations. In the CGNC containing perfect graphene, the increasing graphene damage induced by the increase of the number of cascades, did not obviously impair the role of copper-graphene interface in keeping the properties of CGNC. In the CGNC containing prefabricated damage graphene, the properties of CGNC would significantly deteriorate once the radius of prefabricated damage exceeds 10 Å, and even stacking fault tetrahedral would occur in the CGNC. The results highlighted that prefabricated graphene damage have greater effects on the change of the properties of CGNC. Therefore, it is very necessary to maintain the structural integrity of graphene for improving the radiation-resistance and configuration of CGNC.
authors.affiliation: Department of Nuclear Science &Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
authors.forename: Hai
authors.initials: H
authors.lastname: Huang
authors.affiliation: Department of Nuclear Science &Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.|Jiangsu Key Laboratory of Nuclear Energy Equipment Materials Engineering, Nanjing, 210016, China.
authors.forename: Xiaobin
authors.initials: X
authors.lastname: Tang
authors.affiliation: Department of Nuclear Science &Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
authors.forename: Feida
authors.initials: F
authors.lastname: Chen
authors.affiliation: Department of Nuclear Science &Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
authors.forename: Jian
authors.initials: J
authors.lastname: Liu
authors.affiliation: Department of Nuclear Science &Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
authors.forename: Huan
authors.initials: H
authors.lastname: Li
authors.affiliation: Department of Nuclear Science &Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.|Jiangsu Key Laboratory of Nuclear Energy Equipment Materials Engineering, Nanjing, 210016, China.
authors.forename: Da
authors.initials: D
authors.lastname: Chen