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Graphene defect engineering for optimizing the interface and mechanical properties of graphene/copper composites
Abstract
Abstract A graphene defect engineering strategy was proposed in this work to tailor the interface and mechanical properties of graphene/Cu composites. Plasma treatment was used to create surface defects (5–10 nm nanopores) on the basal-plane of starting graphene material but without considerably damaging the graphene structure. It was demonstrated that the CuxOy oxides were in situ formed at the defect sites of plasma-treated graphene in the sintering process, which played a bridging role in enhancing the interfacial adhesion of graphene with Cu matrix. Compared to the composites with untreated graphene, the composites with plasma-treated graphene exhibited a higher strength enhancement, and better interface stability in response to thermal cycling, which was ascribed to the CuxOy-coordinated improved interfacial bonding that provided efficient load transfer and thermal stress relaxation. Nevertheless, the overlong plasma treatment could severely damage the graphene structure and result in a reduced strength enhancement. This study suggests that the rational defect engineering of graphene is an efficient approach for optimizing the interface and mechanical properties of graphene/metal composites.
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Cites
The chemistry of graphene oxide
Dreyer, D. R., Park, S., Bielawski, C. W., & Ruoff, R. S. (2010) · Chem. Soc. Rev. · doi:10.1039/b917103g · Cited by 11,653
Cited by
Zhang, X., Xu, Y., Wang, M., Liu, E., Zhao, N., Shi, C., Lin, D., Zhu, F., & He, C. (2020) · Nature Communications · doi:10.1038/s41467-020-16490-4 · Cited by 355
Chu, K., Liu, Y.-P., Li, Y.-B., Guo, Y.-L., & Tian, Y. (2020) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.9b18263 · Cited by 331
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Metadata
- Authors
- Chu, K., Wang, J., Liu, Y.-P., & Geng, Z.-R.
- Venue
- Carbon
- Publisher
- Elsevier BV
- Published
- 2018-12
- Volume
- 140
- Pages
- 112-123
- ISSN
- 0008-6223 (ISSN-L)
- OpenAlex
- W2885373355
- Cited by
- 229
- References
- 1
- FWCI
- 16.47
- Type
- journal article
- Language
- en
- Open access
- closed
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- Chu, K., Wang, J., Liu, Y.-P., & Geng, Z.-R. (2018). Graphene defect engineering for optimizing the interface and mechanical properties of graphene/copper composites. Carbon. https://doi.org/10.1016/j.carbon.2018.08.004
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