Abstract
Understanding structural integrity of physical structures in chemical and electrochemical systems/environments is of practical importance in analyzing and predicting the reliability and lifespan of the physical structures. In this work, we systematically investigate the crack growth in the TiO2 layers with TiO2 nanotube arrays during electrochemical anodization of Ti plates without external mechanical loading. There exists the combinational effects of the anodization voltage and the anodization temperature on the crack growth. A simple relationship between the growth rate of the areal crack density, the anodization temperature and the anodization voltage are proposed and supported by the experimental results. The growth rate of the areal density of the surface cracks increases with the increase of the anodization voltage and the anodization temperature. The nominal activation energy is a decreasing function of the anodization voltage, suggesting that increasing the anodization voltage promotes fast growth of the surface cracks in the TiO2 oxide layer.
Original language | English |
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Article number | 207626 |
Journal | Micro and Nanostructures |
Volume | 181 |
DOIs | |
State | Published - Sep 2023 |
Bibliographical note
Publisher Copyright:© 2023
Funding
YL is grateful for the support from the National Natural Science Foundation of China (grant no. 22075197 and 22278290 ). ZW is grateful for the support the Shanxi Provincial Natural Science Foundation of China ( 201903D421081 ) and Research and Development Project of Key Core and Common Technology of Shanxi Province ( 20201102018 ). AW is grateful for the support the Shanxi Provincial Natural Science Foundation of China ( 202103021224079 ).
Funders | Funder number |
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Research and Development Project of Key Core and Common Technology of Shanxi Province | 20201102018, 202103021224079 |
National Natural Science Foundation of China (NSFC) | 22278290, 22075197 |
Natural Science Foundation of Shanxi Province, China | 201903D421081 |
Keywords
- Activation energy
- Anodization
- Crack evolution
- Nanomaterials
- TiO nanotube arrays
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Biomaterials
- Condensed Matter Physics