Effect of Dealloying Conditions on Nanoporous Surface of Cu-Zn Alloy

Abstract:

This research aims to develop a porous layer surface using two steps: the radio frequency (R.F.) sputtering and dealloying. The glass substrate was firstly coated with Cu-Zn using the R.F. sputtering method. Then nano-porous layer surface is produced by dealloying-corrosion to dissolve unwanted element (Zn) from the base metal (Cu). The characterization techniques are scanning electron microscope (FE-SEM) for topographical analysis, X-ray fluorescent (XRF) for chemical analysis, and potentiostat for electrochemical measurement. It was found that the coated specimens obtained by R.F. sputtering are uniformly distributed by Cu-Zn alloys on the substrate’s surface. In addition, after dealloying, it was found that the diameter of the ligament size and pore size are in the nano-scale over the substrate’s surface.

• Periodical: Key Engineering Materials (Volume 728)
• Pages: 181-186
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.728.181
• Online since: January 2017
• Authors: Parinya Boonsa, Jitti Kamsawat, Watcharee Rattanasakulthong, Aphichart Rodchanarowan*
• Keywords: Corrosion, Cu-Zn Alloy, Dealloying, Nanoporous Surface, Radio Frequency (R.F.) Sputtering

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