The Nonferrous Metals Society of China

Transactions of Nonferrous Metals Society of China >

2022 , Vol. 32 >Issue 2: 472 - 482

DOI: https://doi.org/10.1016/S1003-6326(22)65808-4

Materials Science and Engineering

EnhancedMg/graphene interface adhesion using intermediateMgO layers:First-principles prediction and analysis

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  • Wei-cheng WANG1*, Jin-long LIU1*, Han-han ZHAO1, Qiu-hong YUAN2,Lan LUO1,3, Yong JIANG4, Yong LIU1
1. Key Laboratory of Lightweight and High Strength Structural Materials of Jiangxi Province,Nanchang University, Nanchang 330031, China;
2. Physical Science and Technology College, Yichun University, Yichun 336000, China;
3. School of Materials Science and Engineering, Nanchang University, Nanchang 330031, China;
4. School of Materials Science and Engineering, Central South University, Changsha 410083, China

Online published: 2022-02-25

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Abstract

Graphene-reinforced Mg matrix composites suffer seriously from the weak Mg/graphene interfacial bonding. In this study, a first-principles study was performed to evaluate the feasibility of improving the Mg/graphene bonding using an in-situ formed intermediate MgO layer. The calculated interface adhesion strengths suggested a relative ordering (from high to low) of Mg(0001)/MgO(11-1) >MgO(11-1)/graphene >Mg(0001)/graphene. The enhanced Mg/MgO/graphene interface bonding can be attributed to the newly formed strong ionic and covalent interactions at the Mg/MgO and the MgO/graphene interfaces, respectively, which replace the otherwise very weak van der Waals bonding between Mg and graphene.

Cite this article

Wei-chengWANG*,Jin-longLIU*,Han-hanZHAO,Qiu-hongYUAN,LanLUO,YongJIANG,YongLIU . EnhancedMg/graphene interface adhesion using intermediateMgO layers:First-principles prediction and analysis[J]. Transactions of Nonferrous Metals Society of China, 2022 , 32(2) : 472 -482 . DOI: 10.1016/S1003-6326(22)65808-4

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