Nanohydroxyapatite coating on a titanium–niobium alloy by a hydrothermal process

Xiong, Jianyu, Li, Yuncang, Hodgson, Peter and Wen, Cui'e 2010, Nanohydroxyapatite coating on a titanium–niobium alloy by a hydrothermal process, Acta biomaterialia, vol. 6, no. 4, pp. 1584-1590, doi: 10.1016/j.actbio.2009.10.016.

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Title Nanohydroxyapatite coating on a titanium–niobium alloy by a hydrothermal process
Author(s) Xiong, Jianyu
Li, Yuncang
Hodgson, Peter
Wen, Cui'e
Journal name Acta biomaterialia
Volume number 6
Issue number 4
Start page 1584
End page 1590
Total pages 7
Publisher Elsevier BV
Place of publication Amsterdam, The Netherlands
Publication date 2010-04
ISSN 1742-7061
1878-7568
Keyword(s) titanium–niobium alloy
nanohydroxyapatite
coating
hydrothermal process
Summary A novel one-step hydrothermal coating process was used to produce nanohydroxyapatite (nano-HA) coating on a titanium–niobium (TiNb) alloy substrate in a newly designed solution containing calcium and phosphate ions. The morphology of the coating was studied using scanning electron microscopy. The phase identification of the coating was carried out using X-ray diffraction, attenuated total reflectance Fourier transform infrared spectroscopy and transmission electron microscopy. The reaction between the surface of TiNb alloy and the solution during the hydrothermal process was studied by Xray photoelectron spectroscopy. Results show that the coating formed on the surface of TiNb alloy was composed of nano-HA particles. During the hydrothermal process, TiO2 and Nb2O5 formed on the TiNb alloy surface and hydrated to Ti(OH)4 and Nb(OH)5, respectively. Calcium phosphate nucleated and grew into a layer of nano-HA particles on the surface of TiNb alloy under the hydrothermal conditions. The crystallinity of the nano-HA coating was improved with the increase in hydrothermal treatment temperature and time duration. Nano-HA coating with good crystallinity was produced on the TiNb alloy via the hydrothermal process at a temperature of 200 ºC for 12 h.
Language eng
DOI 10.1016/j.actbio.2009.10.016
Field of Research 090301 Biomaterials
Socio Economic Objective 861299 Fabricated Metal Products not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
HERDC collection year 2010
Copyright notice ©2009, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30030472

Document type: Journal Article
Collections: Centre for Material and Fibre Innovation
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