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Cu Atoms-assisted rapid fabrication of graphene/Al composites with tailored strain-delocalization effect by spark plasma sintering.
- Source :
- Materials Research Letters; Sep2022, Vol. 10 Issue 9, p567-574, 8p
- Publication Year :
- 2022
-
Abstract
- Al 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<subscript>2</subscript>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. Al matrix composites reinforced by graphene nanosheets decorated with Cu nanoparticles fabricated by spark plasma sintering was applied to realize simple and rapid fabrication of composites with strain-delocalization effect. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 21663831
- Volume :
- 10
- Issue :
- 9
- Database :
- Complementary Index
- Journal :
- Materials Research Letters
- Publication Type :
- Academic Journal
- Accession number :
- 157177116
- Full Text :
- https://doi.org/10.1080/21663831.2022.2066484