ISSN:
1013-9826
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
45S5 Bioglass® coatings have been produced on superelastic nickel-titanium wires usingelectrophoretic deposition (EPD). Aqueous suspensions of Bioglass® particles (〈 5 &m meanparticle size) were used. EPD led to the formation of thick and uniform coatings covering the wiresvery homogeneously, without the development of any microcracks during the drying stage. Bestresults 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 exhibiteddiffusion 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 informationabout the thickness of the coating produced on the different substrates. The results demonstrate thatthe EPD technique is a very convenient method to produce uniform Bioglass® coatings on wires forbiomedical applications
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/51/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.314.219.pdf
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