Abstract
Copper-based porous materials possess excellent thermal conductivity and heat dissipation performance and are often used to prepare phase change ultra-thin heat pipes to address the heat dissipation issues of high heat flux electronic components. In this study, a novel sintered copper porous material, composed of copper powder and copper wire, was fabricated. The pore structure characteristics and tensile mechanical properties were investigated. The research results showed that, under the same porosity conditions, the tensile strength of the composite porous material was significantly higher than that of the sintered copper powder porous material. The addition of copper wire caused changes in the pore shape, pore size, and size distribution of the internal pores: most of the pores with diameters ranging from 0.5 to 6 μm in the powder sintering structure transformed into pores with diameters larger than 8 μm, resulting in increased average pore size and a more uniform pore size distribution, improving the material's liquid permeability. These improvements in mechanical properties and changes in pore structure will be more advantageous for its application in the field of phase change heat dissipation.
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Acknowledgments
This study was funded by the Scientific and Technological Project of Henan Province [grant number 212102210060 and 232102220048], Young Backbone Teacher Cultivation Plan for Higher Education of Henan University [grant number 2020GGJS129], and Key Research and Development Projects of Henan Province in 2022 [grant number 221111240200].
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Duan, L., Liu, Z., Li, H. et al. Structural Characterization and Tensile Mechanical Properties of Novel Copper-Based Porous Materials. J. of Materi Eng and Perform (2023). https://doi.org/10.1007/s11665-023-08895-1
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DOI: https://doi.org/10.1007/s11665-023-08895-1