| In situ formation of titania film on NiTi alloy treated with hydrogen peroxide solution at low temperature |
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| 引用本文： | 储成林 周俊 钟志源 浦跃朴 林萍华. In situ formation of titania film on NiTi alloy treated with hydrogen peroxide solution at low temperature[J]. 中国有色金属学会会刊, 2005, 15(4): 834-838 |
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| 作者姓名： | 储成林 周俊 钟志源 浦跃朴 林萍华 |
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| 作者单位： | [1]Department of Materials Science and Engineering, Southeast University, Nanjing 210096, China [2]Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, China [3]School of Public Health, Southeast University, Nanjing 210096, China |
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| 基金项目： | 香港研究资助局资助项目，江苏省自然科学基金 |
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| 摘 要： | Chemically polished NiTi shape memory alloy（SMA） substrate was treated with a boiling aqueous solution containing hydrogen peroxide to form titania film in situ at low temperature. The surface characterizations of titania film on NiTi substrate were investigated by scanning electron microscopy, X-ray diffractometry and X-ray photoelectron spectroscopy. The results show that titania film is successfully fabricated in situ on NiTi SMA by this surface oxidation method. It is mainly composed of rutile and anatase, whose surface compositions and morphologies are sensitive to H2O2 content. In situ formation mechanism of titania film on NiTi substrate was discussed based on the experimental results.
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| 关 键 词： | 二氧化钛 NiTi合金 过氧化氢 温度 薄膜 |
| 文章编号： | 1003-6326（2005）04-0834-05 |
| 收稿时间： | 2004-11-29 |
| 修稿时间： | 2005-03-21 |
In situ formation of titania film on NiTi alloy treated with hydrogen peroxide solution at low temperature |
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| CHU Cheng-lin,ZHOU Jun,CHUNG Jonathan-CY,PU Yao-pu,LUN Ping-hua. In situ formation of titania film on NiTi alloy treated with hydrogen peroxide solution at low temperature[J]. Transactions of Nonferrous Metals Society of China, 2005, 15(4): 834-838 |
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| Authors: | CHU Cheng-lin ZHOU Jun CHUNG Jonathan-CY PU Yao-pu LUN Ping-hua |
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| Abstract: | Chemically polished NiTi shape memory alloy(SMA) substrate was treated with a boiling aqueous solution containing hydrogen peroxide to form titania film in situ at low temperature. The surface characterizations of titania film on NiTi substrate were investigated by scanning electron microscopy, X-ray diffractometry and X-ray photoelectron spectroscopy. The results show that titania film is successfully fabricated in situ on NiTi SMA by this surface oxidation method. It is mainly composed of rutile and anatase, whose surface compositions and morphologies are sensitive to H2O2 content. In situ formation mechanism of titania film on NiTi substrate was discussed based on the experimental results. |
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| Keywords: | titania thin films shape memory alloy(SMA) NiTi alloy oxidation surface structure |
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