期刊
APPLIED SURFACE SCIENCE
卷 317, 期 -, 页码 701-709出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2014.08.187
关键词
Anti-icing behavior; Continuous chemical etching; Aluminum; Superhydrophobic; Glaze ice
类别
资金
- National Natural Science Foundation of PR China [51377177]
- Natural Science Foundation Project of CQ CSTC [cstcjjA50007]
Aluminum is extensively used metals in transmission lines, and the accumulation of ice on aluminum may inflict serious damage such as tower collapse and power failure. In this study, micro/nanostructured aluminum surface was fabricated using a continuous chemical etching method. The static and dynamic anti-icing behaviors of the as-prepared aluminum surface in different conditions were systematically investigated with a self-made device and artificial climate laboratory. Results showed that the asprepared surface can mitigate freezing in glaze ice. Only several isolated ice points formed on the surface in glaze ice after 50 min. Due to the superhydrophobicity of the as-prepared aluminum surface, cold water sprayed on the surface aggregated into large drops and rolled off the surface before freezing, thus protecting the surface against excessive ice accumulation. The surface morphology and crystal structure of the samples were also characterized by scanning electron microscopy/energy-dispersive spectrometry and X-ray diffraction. This study offers insight into understanding the anti-icing behavior of the superhydrophobic aluminum surface and may favor the application of structured aluminum surface in power transmission lines against ice accumulation. (C) 2014 Elsevier B.V. All rights reserved.
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