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Indexed by:期刊论文

Date of Publication:2010-06-01

Journal:SURFACE REVIEW AND LETTERS

Included Journals:SCIE、EI

Volume:17

Issue:3

Page Number:375-381

ISSN No.:0218-625X

Key Words:Super-hydrophobicity; chemical etching; micro- and nanostructure; aluminum; stainless steel

Abstract:Hierarchical alveolate structures in nano- to microscale were fabricated on both aluminum and stainless steel substrates via a chemical etching. On aluminum surfaces, sharp edged caves and plateaus were found. On stainless steel substrate, fine papillae stand on protuberances. These surfaces exhibit super-hydrophobic properties after the fluorination treatment, their water contact angles are 158 degrees and 160 degrees, respectively, with the contact angle hysteresis of about 5 degrees. The roll off angle is about 5 degrees. Ice melting behaviors on a plate of aluminum super-hydrophobic surface were compared with those on a hydrophilic one, their difference shows that the new feature of super-hydrophobic surface could be expected.