Cu Atoms-assisted rapid fabrication of graphene/Al composites with tailored strain-delocalization effect by spark plasma sintering

Lizhuang Yang; Tielong Han; Xiang Zhang; Chunnian He; Naiqin Zhao

doi:10.1080/21663831.2022.2066484

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Cu Atoms-assisted rapid fabrication of graphene/Al composites with tailored strain-delocalization effect by spark plasma sintering

Original Reports | 更新时间：2026-08-19

- Cu Atoms-assisted rapid fabrication of graphene/Al composites with tailored strain-delocalization effect by spark plasma sintering
- Materials Research Letters Vol. 10, Issue 9, Pages: 567-574(2022)
- 作者机构：
  
  1. a School of Materials Science and Engineering Tianjin Key Laboratory of Composite and Functional Materials Tianjin University
  2. b Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University
  3. b Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Fuzhou People’s Republic of China
  4. a School of Materials Science and Engineering Tianjin Key Laboratory of Composite and Functional Materials Tianjin University Tianjin People’s Republic of China
  5. c Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin People’s Republic of China
  6. d Key Laboratory of Advanced Ceramics and Machining Technology Ministry of Education Tianjin University
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2022.2066484
  CLC：
- Online First：27 April 2022，
  
  Published：2022
- 稿件说明：
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Lizhuang Yang, Tielong Han, Xiang Zhang, et al. Cu Atoms-assisted rapid fabrication of graphene/Al composites with tailored strain-delocalization effect by spark plasma sintering[J]. Materials Research Letters, 2022, 10(9): 567-574.
DOI：

Lizhuang Yang, Tielong Han, Xiang Zhang, et al. Cu Atoms-assisted rapid fabrication of graphene/Al composites with tailored strain-delocalization effect by spark plasma sintering[J]. Materials Research Letters, 2022, 10(9): 567-574. DOI： 10.1080/21663831.2022.2066484.

摘要

Abstract

l matrix composites with the strain-delocalization effect were fabricated by spark plasma sintering using graphene nanosheets decorated with Cu nanoparticles (Cu NPs@GNS) as reinforcement. The Joule heat

thermal stress-induced dynamic crystallization and the abnormal grain growth facilitate shorter diffusion paths of Cu atoms in the Al matrix thus generating a supersaturated solid solution near the GNS/Al interface. Thereby

the intragranular plate-like θ′-Al

Cu was generated in the adjacent grains of GNS so that the strain-delocalization effect was realized. The combination of excellent strain hardening ability

transgranular fracture mode and elongated crack path results in strength-ductility synergy.

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Related Institution

State Key Lab of Metal Matrix Composites Shanghai Jiao Tong University

b Suzhou Laboratory

a Department of Civil and Mechanical Engineering Technical University of Denmark

c Chongqing Academy of Science and Technology

b National Engineering Research Center for Magnesium Alloys Chongqing University Chongqing People’s Republic of China

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