Insitu for mation of titania film on NiTi alloy treated with hydrogen peroxide solution at low temperature

作     者：储成林 周俊 钟志源 浦跃朴 林萍华 

作者机构：Depart ment of Materials Science and EngineeringSoutheast University Depart ment of Physics and Materials Science City University of Hong Kong School of Public HealthSoutheast University 

出 版 物：《中国有色金属学会会刊：英文版》 (Transactions of Nonferrous Metals Society of China)

年 卷 期：2005年第15卷第4期

页      面：834-838页

核心收录：

学科分类：080503[工学-材料加工工程] 0806[工学-冶金工程] 08[工学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0813[工学-建筑学] 0703[理学-化学] 0814[工学-土木工程] 0702[理学-物理学] 

基　　金：Project(CityU1181/01E) supported by the Research Grants Council of the Hong Kong Special Administrative Region ,China Project(BK2003062) supported by the Natural Science Foundation of Jiangsu Province , China 

主　　题：二氧化钛 NiTi合金 过氧化氢 温度 薄膜 

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.