Paper Title:
Bioglass® Coatings on Superelastic NiTi Wires by Electrophoretic Deposition (EPD)
  Abstract

45S5 Bioglass® coatings have been produced on superelastic nickel-titanium wires using electrophoretic deposition (EPD). Aqueous suspensions of Bioglass® particles (< 5 &m mean particle size) were used. EPD led to the formation of thick and uniform coatings covering the wires very homogeneously, without the development of any microcracks during the drying stage. Best results were achieved with suspensions containing 20 wt% Bioglass®, an applied voltage of 5 V, and a deposition time of 5 min. Samples sintered for 1 hour at temperatures > 800 °C exhibited diffusion of nickel and titanium into the Bioglass® coating. Scanning electron microscopy (SEM) was used to analyse the microstructure of the Bioglass® coatings in terms of level of uniformity, densification, and to discover the possible presence of microcracks, as well as to gain information about the thickness of the coating produced on the different substrates. The results demonstrate that the EPD technique is a very convenient method to produce uniform Bioglass® coatings on wires for biomedical applications.

  Info
Periodical
Edited by
A.R. Boccaccini, O. Van der Biest and R. Clasen
Pages
219-224
DOI
10.4028/www.scientific.net/KEM.314.219
Citation
A. R. Boccaccini, E.J. Minay, D. Krause, "Bioglass® Coatings on Superelastic NiTi Wires by Electrophoretic Deposition (EPD)", Key Engineering Materials, Vol. 314, pp. 219-224, 2006
Online since
July 2006
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Price
$32.00
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