Journal of Materials Science

, Volume 45, Issue 5, pp 1160–1169 | Cite as

Structural and textural study of electrodeposited zinc from alkaline non-cyanide electrolyte

  • M. S. Chandrasekar
  • Shanmugasigamani Srinivasan
  • Malathy Pushpavanam
Article
First Online:
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Accepted:

Abstract

Pulse electrodeposition was used to produce zinc deposits from an alkaline non-cyanide electrolyte with additives. The influence of additives’ concentration and pulse parameters, such as ON-time, OFF-time, and pulse peak current density on the grain size, surface morphology, and crystal orientation were investigated. In an additive-free electrolyte, increase in OFF-time at constant ON-time and peak current density decreases the grain size while the latter increases with increasing ON-time at constant OFF-time and peak current density. A progressive decrease of grain size was observed with increasing peak current density up to 5 Adm−2 at constant ON-time and OFF-time in both additive-free electrolyte and bath containing additives. Zinc with an average crystallite size of 34 nm was obtained at 5 Adm−2 from electrolyte containing additives. The preferred orientation of the zinc deposits obtained at 6 ms (ON-time), 51.5 ms (OFF-time) and 5 Adm−2 (peak current density) with electrolyte containing additives was prismatic [10.0] plane.

Keywords

Crystallographic Orientation Peak Current Density Zinc Coating Zinc Deposit Pulse Electrodeposition 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Notes

Acknowledgements

The authors wish to express their sincere thanks to the Director and to the staff of Central Instrumentation facility at CECRI, Karaikudi, the support rendered to the study. M.S. Chandrasekar expresses his gratitude to CSIR, New Delhi for Diamond Jubilee Research Intern Scheme. Malathy Pushpavanam expresses her gratitude to All India Council for Technical education, New Delhi for funding her work as Emeritus Fellow at Alagappa Chettiar College of Engineering & Technology, Karaikudi-4.

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • M. S. Chandrasekar
    • 1
  • Shanmugasigamani Srinivasan
    • 2
  • Malathy Pushpavanam
    • 3
  1. 1.Indian Institute of Technology, MadrasChennaiIndia
  2. 2.Central ElectroChemical Research InstituteKaraikudiIndia
  3. 3.Alagappa Chettiar College of Engineering & TechnologyKaraikudiIndia

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