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Study on Micron Porous Copper Prepared by Physical Vacuum Dealloying

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Acta Metallurgica Sinica (English Letters) Aims and scope

Abstract

Porous copper was prepared successfully by physical vacuum dealloying method using the CuZn alloy precursors (Cu30Zn70, Cu40Zn60 and Cu50Zn50 alloys). The micron porous copper showed a three-dimensional continuous porous structure with 1–5 μm pore size. With the increase of the Zn content in the CuZn alloy, the pore structure of the porous copper was more uniform and ordered. Temperature was the key factor for physical dealloying, and the optimized temperature was 500 °C for the CuZn alloy. The pores would fuse and disappear when the temperature was over 500 °C. Physical vacuum dealloying was an effective preparation method for porous copper, which can be used to prepare other porous metals based on the sublimation and the Kirkendall effect.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (Grant No. 31370976) and the National Basic Research Program of China (Grant No. 2012CB619101).

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Authors and Affiliations

  1. Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China

    Yi-Bin Ren & Ke Yang

  2. Shenyang Aerospace University, Shenyang, 110136, China

    Yu-Xia Sun

Authors
  1. Yi-Bin Ren
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  2. Yu-Xia Sun
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  3. Ke Yang
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Correspondence to Yi-Bin Ren.

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Ren, YB., Sun, YX. & Yang, K. Study on Micron Porous Copper Prepared by Physical Vacuum Dealloying. Acta Metall. Sin. (Engl. Lett.) 29, 1144–1147 (2016). https://doi.org/10.1007/s40195-016-0505-z

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  • DOI: https://doi.org/10.1007/s40195-016-0505-z

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