Effect of hot water and heat treatment on the apatite-forming ability of titania films formed on titanium metal via anodic oxidation in acetic acid solutions

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	Effect of hot water and heat treatment on the apatite-forming ability of titania films formed on titanium metal via anodic oxidation in acetic acid solutions
	X. Y. Cui; H. M. Kim; M. Kawashita; L. B. Wang; T. Y. Xiong; T. Kokubo; T. Nakamura
	2008
发表期刊	Journal of Materials Science-Materials in Medicine
ISSN	0957-4530
卷号	19 期号:4 页码:1767-1773
摘要	Titanium and its alloys have been widely used for orthopedic implants because of their good biocompatibility. We have previously shown that the crystalline titania layers formed on the surface of titanium metal via anodic oxidation can induce apatite formation in simulated body fluid, whereas amorphous titania layers do not possess apatite-forming ability. In this study, hot water and heat treatments were applied to transform the titania layers from an amorphous structure into a crystalline structure after titanium metal had been anodized in acetic acid solution. The apatite-forming ability of titania layers subjected to the above treatments in simulated body fluid was investigated. The XRD and SEM results indicated hot water and/or heat treatment could greatly transform the crystal structure of titania layers from an amorphous structure into anatase, or a mixture of anatase and rutile. The abundance of Ti-OH groups formed by hot water treatment could contribute to apatite formation on the surface of titanium metals, and subsequent heat treatment would enhance the bond strength between the apatite layers and the titanium substrates. Thus, bioactive titanium metals could be prepared via anodic oxidation and subsequent hot water and heat treatment that would be suitable for applications under load-bearing conditions.
部门归属	[kawashita, masakazu] tohoku univ, ctr res strategy & support, aoba ku, sendai, miyagi 9808579, japan. [cui, xinyu; wang, longbao; xiong, tianying] chinese acad sci, inst met res, shenyang 110016, peoples r china. [kim, hyun-min] yonsei univ, sch adv mat engn, dept ceram engn, seoul 120749, south korea. [kokubo, tadashi] chubu univ, coll life & hlth sci, dept biomed sci, kasugai, aichi 4878501, japan. [nakamura, takashi] kyoto univ, grad sch med, dept orthoped surg, kyoto 6158507, japan.;kawashita, m (reprint author), tohoku univ, ctr res strategy & support, aoba ku, 6-6-11-1306-1 aramaki aoba, sendai, miyagi 9808579, japan;m-kawa@ecei.tohoku.ac.jp
关键词	Simulated Body-fluid Treated Titanium Low-temperature Mechanical-properties Direct Deposition Aqueous-solutions Oxide-films Hydroxylapatite Anatase Glass
URL	查看原文
WOS记录号	WOS:000253976200044
引用统计	被引频次：34[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32703
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Y. Cui,H. M. Kim,M. Kawashita,et al. Effect of hot water and heat treatment on the apatite-forming ability of titania films formed on titanium metal via anodic oxidation in acetic acid solutions[J]. Journal of Materials Science-Materials in Medicine,2008,19(4):1767-1773.
APA	X. Y. Cui.,H. M. Kim.,M. Kawashita.,L. B. Wang.,T. Y. Xiong.,...&T. Nakamura.(2008).Effect of hot water and heat treatment on the apatite-forming ability of titania films formed on titanium metal via anodic oxidation in acetic acid solutions.Journal of Materials Science-Materials in Medicine,19(4),1767-1773.
MLA	X. Y. Cui,et al."Effect of hot water and heat treatment on the apatite-forming ability of titania films formed on titanium metal via anodic oxidation in acetic acid solutions".Journal of Materials Science-Materials in Medicine 19.4(2008):1767-1773.