Naslov
An EIS Study of Nanostructured Biocompatible Hydroxyapatite Coatings on Titanium Alloys

Autori
Kwokal, Ana ; Piljac, Jasenka ; Metikoš-Huković, Mirjana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Electrochemistry in Molecular and Microscopic Dimensions, Book of Abstracts / - Frankfurt : Deutsche Gesellschaft für chemisches Apparatewesen (DECHEMA), 2002, 212-212

Skup
53rd Annual Meeting of the ISE

Mjesto i datum
Düsseldorf, Njemačka, 15.09.2002. - 20.09.2002

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Hydroxyapatite; Titanium

Sažetak
The concept of coating metal implant surface with multilayered nanostructures of hydroxyapatite bioceramic films combines the mechanical benefits of alloys with biocompatible properties of the coating. Titanium, Ti6Al6Nb and Ti6Al4V substrates were coated by the sol-gel technique using calcium 2-ethylhexanoate and 2-ethyl-hexyl-phosphate as calcium and phosphorus precursors, respectively. The coatings were characterized by the x-ray diffraction technique. The dielectric properties of CaP coatings and their influence on chemical and corrosion stability of the substrate material were investigated in simulated physiological solution using nondestructive impedance spectroscopy technique. After prolongoued exposure to physiological solution, due to disintegration of the coating, the properties of substrate material became pronounced with the following order of decreasing resistance to corrosion: Ti6Al6Nb > Ti > Ti6Al4V. The results were compared with the results of spontaneously formed coatings on titanium and titanium alloys.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Kemijsko inženjerstvo

POVEZANOST RADA