Apatite coatings onto titanium surfaces submitted to laser ablation with different energy densities
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
15/11/2009
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Resumo |
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Apatite coatings were deposited on titanium surfaces modified by Nd:YVO(4) laser at different energy densities in environment atmosphere. Apatite was synthesized by sol-gel method using calcium nitrate and phosphoric acid as precursors. The titanium modified surfaces were dip-coated into precursor solution and pre-fired at 700 degrees C in air for 3 h. Analyses by XRD, FTIR and SEM showed the formation of a mixture of phases: hydroxyapatite (HA) and tricalcium phosphate (beta-TCP) onto the surfaces submitted to laser ablation. Surface Rietveld analysis showed that a larger amount of non-stoichiometric oxides produced by laser ablation resulted in greater formation of HA on the coating. However, more of the beta-TCP phase than HA was observed on surfaces with low amounts of oxides. (C) 2009 Published by Elsevier B.V. |
Formato |
399-403 |
Identificador |
http://dx.doi.org/10.1016/j.surfcoat.2009.07.013 Surface & Coatings Technology. Lausanne: Elsevier B.V. Sa, v. 204, n. 4, p. 399-403, 2009. 0257-8972 http://hdl.handle.net/11449/41321 10.1016/j.surfcoat.2009.07.013 WOS:000271337500001 |
Idioma(s) |
eng |
Publicador |
Elsevier B.V. Sa |
Relação |
Surface & Coatings Technology |
Direitos |
closedAccess |
Palavras-Chave | #X-ray diffraction #Laser #Sol-gel coatings #Titanium #Hydroxyapatite |
Tipo |
info:eu-repo/semantics/article |