Paper Title:
Pulse Electrolysis for the Production of Hard Ni/TiO2-ZrO2 Composite Coatings
  Abstract

The electrolytic codeposition has drawn interest as an alternative method for the preparation of metal matrix composite electrocoatings with improved properties. Moreover, the application of a current periodically varied by time during electrodeposition, i.e. pulse current (p.c.), instead of the commonly used direct current (d.c.), has been proved to lead to the preparation of surfaces with well-defined properties. In this work, Ni/TiO2-ZrO2 composite electrocoatings were produced under direct and pulse current conditions. The synergetic action of both the pulse application and the simultaneous codeposition of the two different types of particles on the structure, the morphological characteristics and the microhardness of the composite electrocoatings, were studied. Concerning their mechanical behaviour, it was found that the Ni/TiO2-ZrO2 deposits prepared by pulse electrolysis are characterized by Vickers microhardness threefold harder than the d.c. ones.

  Info
Periodical
Defect and Diffusion Forum (Volumes 297-301)
Edited by
Andreas Öchsner, Graeme E. Murch, Ali Shokuhfar and João M.P.Q. Delgado
Pages
930-935
DOI
10.4028/www.scientific.net/DDF.297-301.930
Citation
C. Kollia, I. Deligkiozi, M.M. Dardavila, "Pulse Electrolysis for the Production of Hard Ni/TiO2-ZrO2 Composite Coatings", Defect and Diffusion Forum, Vols. 297-301, pp. 930-935, 2010
Online since
April 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Dae Jin Yang, Seong Je Cho, Jong Oh Kim, Won Youl Choi
Abstract:Lead zirconate titanate (Pb(Zr0.48Ti0.52)O3 or PZT) films were grown on platinized silicon wafers (Pt/SiO2/Si) by d.c. reactive sputtering...
613
Authors: Wai Kit Li, Y.W. Wong
Abstract:Electrospinning is an efficient technique for the fabrication of polymer nanofibers. The charges inside the polymer jet tend to repel each...
67
Authors: M.M. Dardavila, C. Kollia
Abstract:Composite electrodeposition technology is one of the methods used to fabricate metal matrix composite coating materials. One of the most...
235
Authors: Jian Jun Xi, Jun Zhao, Zhi Gang Wang, Chun Ping Zhao, Mei Ping Xue
I. Research and Processing of Materials
Abstract:Copper electroplating films were prepared on 20# steel by four different power modes which are direct current plating, single polar pulse...
14