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

被引：41

作者：

Xiong, Jianyu ^{[1
]}

Li, Yuncang ^{[1
]}

Hodgson, Peter D. ^{[1
]}

Wen, Cui'e ^{[1
]}

机构：

[1] Deakin Univ, Inst Technol Res & Innovat, Geelong, Vic 3217, Australia

来源：

ACTA BIOMATERIALIA | 2010年 / 6卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

Titanium-niobium alloy; Nanohydroxyapatite; Coating; Hydrothermal process; BONELIKE APATITE FORMATION; HYDROXYAPATITE COATINGS; SURFACE MODIFICATION; MECHANICAL-PROPERTIES; SHAPE-MEMORY; THIN-FILMS; LAYER; SUPERELASTICITY; CRYSTALLINITY; DEPOSITION;

D O I：

10.1016/j.actbio.2009.10.016

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

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 degrees C for 12 h. Crown Copyright (C) 2009 Published by Elsevier Ltd. on behalf of Acta Materialia Inc. All rights reserved.

引用

页码：1584 / 1590

页数：7

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