氟化物
腐蚀
热氧化
氧化物
降级(电信)
材料科学
金属
热稳定性
钛
电化学
无机化学
氧化钛
化学工程
热的
冶金
化学
电极
电信
物理
物理化学
气象学
计算机科学
工程类
作者
Liwei Wang,Ming-Tao Wang,Mingyuan Zhong,Xiaoqi Li,Zhongyu Cui
标识
DOI:10.1038/s41529-022-00275-9
摘要
Abstract Electrochemical degradation behavior of thermally oxidized pure Ti in the fluoride-containing acidic environments was investigated. Compact TiO 2 oxides with acceptable hardness and superior corrosion resistance are formed through the thermal oxidation at 650 °C for 24 h. Corrosion of the oxidized Ti depends on the oxidation condition and fluoride content, resulting in the various interfacial structures at the oxide/solution and metal/solution interface. Degradation of the oxidized Ti consists of three stages during long-term immersion, while its critical fluoride concentration is increased by 1~2 orders of magnitude, attributed to the high stability of the TiO 2 thermal oxides.
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