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Raman spectroscopy study of anodic film on Ag43Cu37Zn20 alloy

S. P. DIMITRIJEVIĆ1, Z. Ž. LAZAREVIĆ2,* , M. RAJČIĆ-VUJASINOVIĆ3, S. B. DIMITRIJEVIĆ4, M. PETROVIĆ2, M. GILIĆ2, B. M. JOKIĆ5

Affiliation

  1. Innovation Center Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Serbia
  2. Institute of Physics, University of Belgrade, P.O. Box 68, Belgrade, Serbia
  3. Technical Faculty in Bor, University of Belgrade, Bor, Serbia
  4. Mining and Metallurgy Institute Bor, Bor, Serbia
  5. Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Serbia

Abstract

The objective of this study was characterization of anodic film obtained when Ag43Cu37Zn20 alloy was treated electrochemically in 3.5% wt. NaCl under potentiostatic conditions. At the potential of +0.25 V a complex multilayer film is formed. XRD shows that it consists of CuCl and zinc hydroxichlorides with a small amount of Cu2O, probably formed in the film pores. The anodic film is a mixture of Cu2O, CuCl, Zn5(OH)8·H2O and -Zn(OH)Cl. Phases of the alloy, Ag and Cu rich, show different anodic behavior. It was assumed that all phonon lines in the obtained Raman spectra were of the Lorentzian type, which is one of the common type of lines for this kind of analysis. Phases of Ag, CuCl, -Zn(OH)Cl, Cu2O and Zn5(OH)8(Cl)2·H2O were all registered by XRD..

Keywords

Ag43Cu37Zn20 alloy, Anodic film, Brazing materials, Raman spectroscopy.

Citation

S. P. DIMITRIJEVIĆ, Z. Ž. LAZAREVIĆ, M. RAJČIĆ-VUJASINOVIĆ, S. B. DIMITRIJEVIĆ, M. PETROVIĆ, M. GILIĆ, B. M. JOKIĆ, Raman spectroscopy study of anodic film on Ag43Cu37Zn20 alloy, Optoelectronics and Advanced Materials - Rapid Communications, 10, 9-10, September-October 2016, pp.777-780 (2016).

Submitted at: July 8, 2015

Accepted at: Sept. 29, 2016