Nanostructure surface modification of the orthodontic appliance by a plasma immersion ion implantation

等离子体浸没离子注入对正畸矫治器的纳米结构表面修饰

• 批准号: 19592363
• 负责人: IIJIMA Masahiro
• 金额: $ 2.91万
• 依托单位: Health Sciences University of Hokkaido
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19592363/
• 关键词: イオン注入; 矯正装置; 耐食性; Ni-Tiワイヤー; 腐食試験; アノード分極曲線; フッ化物溶液; X線光電子分光法

The purposes of this study were to investigate the corrosion properties and the surface structure of ion implanted nickel-titanium orthodontic wire. Ion implanted nickel-titanium wire and Non ion implanted nickel-titanium wire were used for a potentiodynamic polarization measurement and X-ray photoelectron spectroscopy (XPS). Ion implanted wire in artificial saliva and mouthrinse with neutral pH had a lower current density than non ion implanted wire. Both wires in mouthrinse with low pH showed similar corrosion properties. XPS results suggested that a TiN layer may be present on the top surface. Plasma immersion ion implantation might increase the corrosion resistance of nickel-titanium wire in a neutral environment because of a protective TiN layer on the top surface.

本研究旨在探讨离子注入镍钛正畸丝的腐蚀特性及表面结构。对离子注入和未离子注入的镍钛丝进行了动电位极化和X射线光电子能谱（XPS）测试。在中性pH的人工唾液和漱口水中，离子注入金属丝的电流密度比非离子注入金属丝的电流密度低。在低pH值的漱口液中，两种金属丝显示出相似的腐蚀特性。XPS结果表明，TiN层可以存在于顶表面上。等离子体浸没离子注入可以提高镍钛丝在中性环境中的耐蚀性，这是因为在其上表面形成了一层TiN保护层。