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

Paper ID Volume ID Publish Year Pages File Format Full-Text
2538 114 2010 7 PDF Available
Title
Nanohydroxyapatite coating on a titanium–niobium alloy by a hydrothermal process
Abstract

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 X-ray 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 °C for 12 h.

Keywords
Titanium–niobium alloy; Nanohydroxyapatite; Coating; Hydrothermal process
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Nanohydroxyapatite coating on a titanium–niobium alloy by a hydrothermal process
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Publisher
Database: Elsevier - ScienceDirect
Journal: Acta Biomaterialia - Volume 6, Issue 4, April 2010, Pages 1584–1590
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us