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Effects on the Microstructure Evolution and Properties of Graphene/Copper Composite during Rolling Process
Ziyue Yang1, Fan Deng1, Zhang Tao1
1Grinm Metal Composites Technology Co., Ltd., Beijing 101400, China.
Materials (Basel, Switzerland)
|August 26, 2023
Summary
Optimizing rolling parameters for graphene/copper composites is key to achieving high strength, ductility, and electrical conductivity. This study found that 85% cold deformation yields superior mechanical and electrical properties due to refined grains and aligned graphene.
Area of Science:
- Materials Science
- Composite Materials
- Nanotechnology
Background:
- Rolling treatment is a promising method for fabricating high-performance graphene/metal composites.
- Simultaneously optimizing strength, ductility, and electrical conductivity in these composites remains a challenge.
Purpose of the Study:
- To investigate the effects of rolling deformation and temperature on graphene/copper composites.
- To understand microstructural evolution, interfacial bonding, and property changes.
Main Methods:
- In situ growth of graphene/copper composites.
- Application of rolling treatment with varying deformation and temperature.
- Systematic investigation of microstructural, mechanical, and electrical properties.
Main Results:
- Cold-rolled composites (85% deformation) achieved maximum strength (548 MPa), high elongation (8.8%), and good electrical conductivity (86.2% IACS).
- Microstructural analysis revealed oriented graphene arrangement and refined copper grains.
- These features contribute to the enhanced composite performance.
Conclusions:
- Comprehensive understanding of rolling behavior in graphene/copper composites.
- Provides insights for developing high-performance graphene-based composites.
- Optimized rolling parameters are crucial for multifunctional properties.
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