Enhanced Interfacial Bonding and Mechanical Properties of Graphene/Cu Composites: A Matrix‐Alloying Method
Enhanced Interfacial Bonding and Mechanical Properties of Graphene/Cu Composites: A Matrix‐Alloying Method
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DOI：
10.1002/pssa.201800104
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发表时间：
2018-06
期刊：
影响因子：
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通讯作者：
Fan Wang;K. Chu;Yu‐biao Li;Xiao-hu Wang
中科院分区：
文献类型：
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作者：
Fan Wang;K. Chu;Yu‐biao Li;Xiao-hu Wang
Strong graphene‐metal interface is of significant importance for the enhanced mechanical properties of graphene/metal composites. However, the design of robust interface for the specific graphene/Cu composites remains challenging. Here, the authors present a matrix‐alloying method for the interface optimization of reduced graphene oxide (RGO)/CuTi composites in which the Cu matrix is alloyed with a trace of Ti (0.3 at.%). It is found that a 5–20 nm thick TiC layer is in situ formed at the interface of RGO/CuTi composites, which shows a specific orientation relationship with RGO: (200)TiC//(0002)RGO[01¯1]TiC//[1¯210]RGO . The generated TiC layer dramatically enhances the interfacial bonding of RGO/CuTi composite, leading to a yield strength of 242 MPa and a tensile strength of 307 MPa at 2 vol.% RGO loading, 24 and 16% higher than those of 2 vol.% RGO/Cu composite without alloying, respectively. Therefore, the matrix‐alloying is an effective approach for enhancing the interfacial bonding and mechanical properties of graphene/Cu composites.
