材料科学
阳极氧化
纳米管
钛
化学工程
无定形固体
降级(电信)
乙二醇
结晶
纳米技术
碳纳米管
复合材料
冶金
化学
有机化学
铝
工程类
电信
计算机科学
作者
Anish Shivaram,Susmita Bose,Amit Bandyopadhyay
标识
DOI:10.1016/j.apsusc.2014.08.107
摘要
The objective of this research was to study thermal degradation behavior of TiO2 nanotubes on titanium (Ti). TiO2 nanotubes were grown via anodization method on commercially pure Ti (Cp-Ti) discs using two different electrolytes, 1 vol. % HF in deionized (DI) water and 1 vol. % HF + 0.5 wt. % NH4F + 10 vol. % DI water in ethylene glycol, to obtain nanotubes with two different lengths, 300 nm and 950 nm keeping the nanotube diameter constant at 100 ± 20 nm. As grown TiO2 nanotubes were subjected to heat treatment to understand thermal degradation as a function of both temperature and hold time. The signs of degradation were observed mainly when amorphous nanotubes started to crystallize, however the crystallization temperature varied based on TiO2 nanotubes length and anodizing condition. Overall, 300 nm nanotubes were thermally stable at least up to 400 °C for 12 h, while the 950 nm long nanotubes show signs of degradation from 400 °C for 6 h only. Clearly, length of nanotubes, heat treatment temperature as well as hold times show influence toward degradation kinetics of TiO2 nanotubes on titanium.
科研通智能强力驱动
Strongly Powered by AbleSci AI