



@article {2410,
	title = {Effect of surface treatments on anodic oxide film growth and electrochemical properties of tantalum used for biomedical applications},
	journal = {Journal of Biomaterials ApplicationsJ. Biomater. Appl.},
	volume = {21},
	year = {2006},
	note = {Cited By (since 1996): 5Export Date: 21 November 2012Source: ScopusCODEN: JBAPEdoi: 10.1177/0885328206056378Language of Original Document: EnglishCorrespondence Address: Silva, R.A.; Instituto Superior de Engenharia do Porto, ISEP-CIEA, Rua Dr. A.B. de Almeida, 431, 4200-072 Porto, Portugal; email: ras@isep.ipp.ptChemicals/CAS: oxide, 16833-27-5; tantalum, 7440-25-7; Biocompatible Materials; Membranes, Artificial; Oxides; Tantalum, 7440-25-7References: Goy, J.J., Eeckhout, E., Stauffer, J.C., Vogt, P., Kappenberger, L., Emergency Endoluminal Stenting for Abrupt Vessel Closure following Coronary Angioplasty: A Randomised Comparison of the Wiktor and Palmaz-Schatz Stents (1995) Catheter. Cardiov. Diag., 34 (2), pp. 128-132;Hamasaki, N., Nosaka, H., Kimura, T., Nakagawa, Y., Yokoi, H., Nobuyioshi, M., Initial Experience with the Cordis Stent: Analysis of Serial Angiographic Follow-up (1995) Catheter. Cardiov. Diag., 42 (2), pp. 166-172; 
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},
	month = {2006///},
	pages = {93 - 103},
	abstract = {Self-expandable nitinol (nickel-titanium) alloys and 316L stainless steel are the most commonly used materials in the production of coronary stents. However, tantalum (Ta) has already been used to make stents for endovascular surgery and may constitute an alternative to other materials because of its better electrochemical performance, namely its higher corrosion resistance, as well as its radio-opacity. The characterization of wet polished, chemically polished, wet polished anodized, and chemically polished anodized Ta electrodes has been performed in a 0.15 M NaCl solution (simulated body fluid) using U                        corr=f(t) measurements, anodic polarizations, capacity measurements, anodic oxidations, and atomic force microscopy (AFM) imaging. Anodic polarization curves have shown that the abnormal current density peak with a maximum value around 1.65 V (critical applied potential, U
                        c) disappeared for the anodized electrodes indicating a probable relationship between the surface states and the film growth. These results are confirmed by capacity measurements. The behavior of wet polished and chemically polished electrodes during anodic oxidations seemingly indicated that for these particular treatments the film growth is different. The AFM images and roughness measurements have shown that chemical polishing produced smoother electrodes, a fact probably related to the differences in film growth. {\textcopyright} 2006 Sage Publications.
},
	keywords = {AFM, Anodic films, Anodic oxide film growth, Anodic polarization, article, artificial membrane, Atomic force microscopy, Biocompatible Materials, biomaterial, Biomedical applications, Biomedical engineering, Chemical polishing, chemistry, Coronary stents, Corrosion resistance, Crystallization, Current density, electric conductivity, Electrochemical properties, electrochemistry, electrode, Electrodes, materials testing, Membranes, Artificial, methodology, oxidation reduction reaction, Oxidation-Reduction, oxide, Oxides, Polarization, Surface Properties, surface property, Surface treatment, Tantalum, Tantalum electrodes},
	isbn = {08853282 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33746412438\&partnerID=40\&md5=e418196142aae805bc91d17a99fcc517},
	author = {Silva, R.A. and Silva, I.P. and Rondot, B.}
}
