Study on Micron Porous Copper Prepared by Physical Vacuum Dealloying

Porous copper was prepared successfully by physical vacuum dealloying method using the CuZn alloy pre- cursors （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 C...

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Bibliographic Details
Published in:Acta metallurgica sinica : English letters 2016-12, Vol.29 (12), p.1144-1147
Main Authors: Ren, Yi-Bin, Sun, Yu-Xia, Yang, Ke
Format: Article
Language:English
Subjects:
Alloys
Characterization and Evaluation of Materials
Chemistry and Materials Science
Copper
Copper base alloys
Copper zinc alloys
Corrosion and Coatings
Dealloying
Electrodes
Kirkendall effect
Kirkendall效应
Materials Science
Metallic Materials
Metals
Nanotechnology
Organometallic Chemistry
Pore size
Porous metals
Scanning electron microscopy
Spectroscopy/Spectrometry
Sublimation
Tribology
制备方法
多孔结构
孔隙结构
微米级
物理真空
铜合金
铜锌合金
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Summary:Porous copper was prepared successfully by physical vacuum dealloying method using the CuZn alloy pre- cursors （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 ℃ for the CuZn alloy. The pores would fuse and disappear when the temperature was over 500 ℃. 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.
ISSN:1006-7191
2194-1289
DOI:10.1007/s40195-016-0505-z