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论文类型：期刊论文

发表时间：2013-07-03

发表刊物：JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY

收录刊物：SCIE、EI

卷号：34

期号：7

页面范围：908-913

ISSN号：0193-2691

关键字：Aluminum; etching; primary cell; superhydrophobic

摘要：In this work, we present a novel etching method to fabricate the superhydrophobic Al surfaces in a salt solution. Hierarchical rough structures composed of micrometer-scale pits, protrusions, and rectangle plateaus and nanometer-scale step-like structures are formed on the Al surfaces by the self-assembled primary cell assisted etching and the preferential corrosion of grain boundaries and dislocations. After fluoroalkylsilane modification, the superhydrophobic Al surfaces with a 166.4 degrees water contact angle and a 1 degrees rolling angle are obtained. The developed method does not use any strong acids and has a smaller harm to the environment and operators.