Calcium phosphate coating of Ti-Nb-Zr-Sn titanium alloy
文献类型：期刊论文
| 作者 | C. Y. Zheng ; S. J. Li ; X. J. Tao ; Y. L. Hao ; R. Yang ; L. Zhang |
| 刊名 | Materials Science & Engineering C-Biomimetic and Supramolecular Systems
 |
| 出版日期 | 2007 |
| 卷号 | 27期号:4页码:824-831 |
| 关键词 | biomedical titanium alloys surface treatment calcium phosphate coating dissolution osteoblast adhesion and proliferation chemically treated titanium simulated body-fluid apatite formation constant undersaturation hydroxyapatite coatings biomedical applications dissolution behavior surface modification biomimetic method low-temperature |
| ISSN号 | 0928-4931 |
| 中文摘要 | This study focuses on rapid formation of calcium phosphate coating on a beta type Ti-Nb-Zr-Sn biomedical titanium alloy by alkali treatment. The results show that a bioconductive surface layer forms on specimens immersed in 1-5 M KOH solution but only treatment in 1 M KOH avoids formation of crevices, producing a potassium titanate layer with porous network structure. Heat treatment at 600 degrees C after the alkali treatment promotes titanate growth. Following the above treatments, a continuous apatite layer forms within 4 h of soaking in a calcium phosphate solution with high ionic concentration. Such rapid apatite formation is due to high concentration of calcium ions in the solution used in this study and the buffering function of NaHCO3. Results of dissolution experiment show that Ca and P ions release gradually from the coating during soaking in a 0.9% NaCl solution, which may be helpful to the formation of natural bone if implanted in human body. Cell culture experiment shows that the apatite layer favours adhesion and proliferation of rat osteoblast as compared with coating-free Ti-Nb-Zr-Sn alloy and commercially pure titanium (CP Ti). (C) 2006 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34081]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | C. Y. Zheng,S. J. Li,X. J. Tao,et al. Calcium phosphate coating of Ti-Nb-Zr-Sn titanium alloy[J]. Materials Science & Engineering C-Biomimetic and Supramolecular Systems,2007,27(4):824-831. |
| APA | C. Y. Zheng,S. J. Li,X. J. Tao,Y. L. Hao,R. Yang,&L. Zhang.(2007).Calcium phosphate coating of Ti-Nb-Zr-Sn titanium alloy.Materials Science & Engineering C-Biomimetic and Supramolecular Systems,27(4),824-831. |
| MLA | C. Y. Zheng,et al."Calcium phosphate coating of Ti-Nb-Zr-Sn titanium alloy".Materials Science & Engineering C-Biomimetic and Supramolecular Systems 27.4(2007):824-831. |
入库方式： OAI收割
来源：金属研究所
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