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Compressive properties of porous Cu reinforced by inserting copper pillars or tubes

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Abstract

Open-cell metal foams suffer from severe deterioration in mechanical properties due to their enriched three-dimensional interconnected holes. In this paper, reinforcing copper pillar(s) or tube(s) are embedded into the foam matrix to form “composite” structure to enhance the open-cell copper foams. To do this, a simple positioning device is designed for preparation of the green porous copper aligned with directional through hole(s) based on a tapping method. Then the reinforcing pillar(s) or tube(s) are inserted into the hole(s) and sintered together. By this means, the mechanical properties of the copper foams are significantly improved. The energy absorption capacity of the composite foams has also been improved because of a higher and wider yield platform compared with the unreinforced copper foams.

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Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (no.51461029).

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Authors and Affiliations

  1. School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou, China

    Jiangang Jia, Yongzhi Jing, Jiakang Ju & Xiaoyu Wang

  2. State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou, China

    Jiangang Jia & Genshun Ji

  3. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China

    Diqiang Liu

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  1. Jiangang Jia
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  2. Yongzhi Jing
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Correspondence to Jiangang Jia.

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Jia, J., Jing, Y., Liu, D. et al. Compressive properties of porous Cu reinforced by inserting copper pillars or tubes. J Porous Mater 28, 963–972 (2021). https://doi.org/10.1007/s10934-021-01049-5

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