Effect of hot extrusion on mechanical properties of Al2O3/Al composite prepared by spark plasma sintering
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Dongmei Gong
Dongmei Gong, born in 1978, studied mechanical engineering at Hefei University of Technology from 2006 to 2009. Afterward, she works as a professor at School of Mechanical and Vehicle Engineering at West Anhui University.
Feng Xu, born in 1978, studied materials processing engineering at Hefei University of Technology from 2005 to 2011, where he obtained his doctorate. Afterward, he works as a professor at School of Mechanical and Vehicle Engineering at West Anhui University since 2012, where he also works as assistant dean.
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Wenchao Shi
Wenchao Shi, born in 1988, studied materials processing engineering at Harbin Institute of Technology from 2013 to 2016, where he obtained his doctorate. He works as an associate professor at School of Materials Science and Engineering at Hefei University of Technology.
Ming Tang, born in 2000, studies material science at Hefei University of Technology since 2022, where he deals with microstructure evolution of composite.
Abstract
The Al2O3/Al composite was prepared by spark plasma sintering. The effect of hot extrusion on microstructure and mechanical properties of the Al2O3/Al composites were investigated. The result shows that the sintered Al2O3/Al composite obtained by spark plasma sintering has more pores. There are more discontinuous Al2O3 films surrounding the surface of the aluminum powders. After hot extrusion, the discontinuous Al2O3 films are broken into Al2O3 particles, with the form of the Al – Al2O3 – Al interface. The ultimate tensile strength of the extruded Al2O3/Al composite increases significantly. The maximum ultimate tensile strength of the extruded Al2O3/Al composite is 175.7 MPa, which can be attributed to the Al – Al2O3 – Al interface.
Funding source: Project for Excellent Research and Innovation Team of Anhui Province
Award Identifier / Grant number: 2024AH010034
Funding source: Anhui Natural Science Foundation
Award Identifier / Grant number: 2308085ME164
Funding source: Project for Cultivating Academic Leaders of Anhui Province
Award Identifier / Grant number: DTR2023040
About the authors
Dongmei Gong, born in 1978, studied mechanical engineering at Hefei University of Technology from 2006 to 2009. Afterward, she works as a professor at School of Mechanical and Vehicle Engineering at West Anhui University.
Feng Xu, born in 1978, studied materials processing engineering at Hefei University of Technology from 2005 to 2011, where he obtained his doctorate. Afterward, he works as a professor at School of Mechanical and Vehicle Engineering at West Anhui University since 2012, where he also works as assistant dean.
Wenchao Shi, born in 1988, studied materials processing engineering at Harbin Institute of Technology from 2013 to 2016, where he obtained his doctorate. He works as an associate professor at School of Materials Science and Engineering at Hefei University of Technology.
Ming Tang, born in 2000, studies material science at Hefei University of Technology since 2022, where he deals with microstructure evolution of composite.
Acknowledgments
This work was supported by Project for Cultivating Academic Leaders of Anhui Province (DTR2023040), Project for Excellent Research and Innovation Team of Anhui Province (2024AH010034), and Anhui Natural Science Foundation (2308085ME164).
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: The authors state no conflict of interest.
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Research funding: None declared.
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Data availability: Data will be made available on request.
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