• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Surface Science >Fabrication of bioactive titania coating on nitinol by plasma electrolytic oxidation
【24h】

Fabrication of bioactive titania coating on nitinol by plasma electrolytic oxidation

机译：等离子体电解氧化法在镍钛合金上制备生物活性二氧化钛涂层

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Surface modification was attempted on Nitinol (NiTi) by plasma electrolytic oxidation (PEO) in aqueous solutions of sodium sulphate and sodium hydroxide (Na_2SO_4-NaOH) using an AC power supply. A thick and porous oxide layer with micron-sized pores was formed on the Nitinol substrate, with the thickness of the oxide layer ranging from a few μm to over 10μm, depending on the processing time. X-ray diffraction (XRD) analysis confirmed that the oxide formed was anatase. Potentiodynamic polarization tests in Hanks' solution showed that the corrosion resistance of PEO-coated Nitinol was much higher than that of the substrate. More importantly, the apatite-forming ability of the PEO-treated NiTi was found to be enhanced. This could be attributed to the anatase crystalline structure of the titanium oxide and the porous structure that facilitates the anchorage of the hydroxyapatite particles.
机译：尝试使用交流电源在硫酸钠和氢氧化钠水溶液（Na_2SO_4-NaOH）中通过等离子体电解氧化（PEO）对镍钛诺（NiTi）进行表面改性。在镍钛诺衬底上形成了具有微米级孔的厚且多孔的氧化层，取决于处理时间，氧化层的厚度范围从几微米到超过10微米。 X射线衍射（XRD）分析证实形成的氧化物是锐钛矿。在汉克斯溶液中的电位动力学极化试验表明，PEO包覆的镍钛诺的耐蚀性远高于基材。更重要的是，发现增强了PEO处理的NiTi的磷灰石形成能力。这可以归因于钛氧化物的锐钛矿晶体结构和促进羟基磷灰石颗粒锚固的多孔结构。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号