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https://hdl.handle.net/11499/9388
Title: | A Study on the Electrodeposited Cu-Zn Alloy Thin Films | Authors: | Özdemir, R. Karahan, İ.H. Karabulut, Orhan |
Keywords: | Aluminum alloys Aluminum coatings Copper Copper alloys Crystal structure Current density Cyclic voltammetry Electric conductivity Electrodeposition Electrolytes Energy dispersive spectroscopy Nanocrystals Phase structure Reduction Scanning electron microscopy Thin films X ray diffraction X ray spectroscopy Zinc Aluminum substrate Body centered cubic (bcc) crystal Dc electrical resistivities Electrochemical deposition Energy dispersive X ray spectroscopy Four point probe Four-point measurements Nanocrystalline Cu Nanocrystalline alloys |
Publisher: | Springer Boston | Abstract: | In this article, electrochemical deposition of the nanocrystalline Cu1-xZnx alloys on to aluminum substrates from a non-cyanide citrate electrolyte at 52.5, 105, 157.5, and 210 A m-2 current densities were described. The bath solution of the Cu1-xZnx alloys consisted of 0.08 mol L-1 CuSO4·5H2O, 0.2 mol L-1 ZnSO4·7H2O, and 0.5 mol L-1 Na3C6H5O7. The effect of the current density on the microstrain, grainsize, phase structure, and DC electrical resistivity behavior was investigated. The electrolyte was investigated electrochemically by cyclic voltammetry (CV) studies. A scanning electron microscope (SEM) was used to study the morphologies of the deposits. Deposited alloys were investigated by energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and four-point probe electrical resistivity techniques. With an increase in applied current density values from 52.5 to 210 A m-2, the amount of deposited copper in the alloy was decreased significantly from 65.5 to 16.6 pct and zinc increased from 34.4 to 83.4 pct. An increase in the current density was accompanied by an increase in grain size values from 65 to 95 nm. SEM observations indicated that the morphology of the film surface was modified to bigger grained nanostructures by increasing the current density. The XRD analysis showed alloys have a body-centered cubic (bcc) crystal structure with preferential planes of (110) and (211). Furthermore, four-point measurements of the films revealed that the resistivity of the deposited films was tailored by varying current densities in the electrolyte. © 2016, The Minerals, Metals & Materials Society and ASM International. | URI: | https://hdl.handle.net/11499/9388 https://doi.org/10.1007/s11661-016-3715-0 |
ISSN: | 1073-5623 |
Appears in Collections: | Fen-Edebiyat Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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