Influence of substrate material and surface finishing on the morphology of the calcium-phosphate coating

• Type: Article in International Scientific Journal
• Date: 1997

Authors

Leitao, E (Author) Other; Mário Adolfo Barbosa (Author) FEUP; deGroot, K (Author) Other

Journal

Title: Journal of Biomedical Materials Research

Vol. 36

Pages: 85-90

ISSN: 0021-9304

Publisher: Heterocorporation

Indexing

ISI Web of Knowledge - 12 Citations

Scopus - 14 Citations

Other information

Authenticus ID: P-001-B4Z

DOI: 10.1002/(sici)1097-4636(199707)36:1<85::aid-jbm10>3.0.co;2-i

Abstract (EN): The formation of an apatite-like layer was achieved by immersing Ti-6Al-4V, Ti-Al-2.5Fe, and 316 L stainless-steel substrata in Hank's balanced salt solution (HBSS). The layer was characterized by surface analysis techniques, namely, X-ray microanalysis and X-ray diffraction, and the morphology was observed by scanning electron microscopy and atomic force microscopy. The concentrations of Ca and P were monitored as a function of time. The morphology ofthe precipitate layer seems to be dependent both on the type of metal substrate and its surface finish. Polished Ti-6Al-4V and Ti-Al-2.5Fe surfaces exhibit a plate precipitate morphology, whereas rougher surfaces show scattered crystal-like precipitation. The results suggest that the layer produced by immersion of polished titanium alloys in HBSS is constituted by an amorphous apatite. (C) 1997 John Wiley & Sons, Inc.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6