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

• Tipo: Artigo em Revista Científica Internacional
• Data: 1997

Autores

Leitao, E (Autor) Outra; Mário Adolfo Barbosa (Autor) FEUP; deGroot, K (Autor) Outra

Revista

Título: Journal of Biomedical Materials Research

Vol. 36

Páginas: 85-90

ISSN: 0021-9304

Editora: Heterocorporation

Indexação

ISI Web of Knowledge - 12 Citações

Scopus - 14 Citações

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6