Nanostructured Nb2O5–natural hydroxyapatite formed by the mechanical alloying method: A bulk composite

The aim of this study was to develop a nanostructured Nb2O5-natural hydroxyapatite bulk composite to serve as an alternative biocompatible bulk material for implants. A set of samples of hydroxyapatite from fish bones with different concentrations of Nb2O5 were designed. They were prepared through a...

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Bibliographic Details
Published in:Materials chemistry and physics 2011-10, Vol.130 (1-2), p.84-89
Main Authors: Nascimento, W.J., Bonadio, T.G.M., Freitas, V.F., Weinand, W.R., Baesso, M.L., Lima, W.M.
Format: Article
Language:English
Subjects:
Barometric pressure
Biomedical materials
Bones
Densification
Fish
Hydroxyapatite
Nanostructure
Surgical implants
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Summary:The aim of this study was to develop a nanostructured Nb2O5-natural hydroxyapatite bulk composite to serve as an alternative biocompatible bulk material for implants. A set of samples of hydroxyapatite from fish bones with different concentrations of Nb2O5 were designed. They were prepared through a milling process, compacted under different pressures (350, 450, 550 and 650MPa) and sintered in air atmosphere at 1000 degree C for 1h. The results revealed that the prepared composites presented strong interactions between the two elements and showed improvement in the sinterability with significant densification and microstructure changes, suggesting that they are promising for implants meant to replace bone tissues.
ISSN:0254-0584
DOI:10.1016/j.matchemphys.2011.05.069