泡沫钛生长二氧化钛纳米管的制备及研究

Preparation and study of TiO2 nanotubes on foamed titanium

摘要:

本文主要研究了泡沫钛孔隙表面生长二氧化钛纳米管的制备方法及二氧化钛纳米管的生长机理。利用与制备多孔陶瓷类似的方式，通过高温真空烧结法，制备了多孔泡沫钛镍合金。对该泡沫合金进行了表面改性，通过阳极氧化法在多孔泡沫钛镍合金的孔隙表面生成了二氧化钛纳米管结构。借助于扫描电镜的观测和分析，对该二氧化钛纳米管的生长机理进行了表征和研究，同时考察了阳极氧化电压和时间对二氧化钛纳米管结构形貌的影响。

Abstract:

A preparation method of TiO2 nanotubes grown on the pore surface of foamed titanium and the growth mechanism of the TiO2 nanotubes were studied in this paper. A kind of porous foamed Ti-Ni alloy was prepared by vacuum sintering method that is similar to the preparation method of porous ceramics. The porous foamed alloy was modified: an anodic oxidation method was used to generate a layer of TiO2 nanotubes on the surface of the porous foamed Ti-Ni alloy. Besides, the growth mechanism of TiO2 nanotubes was researched through scanning electronic microscopy (SEM) method, and the influences both of the anode oxidation voltage and the time on the TiO2 nanotube structure were also investigated.