Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2010-06-01

Journal: SURFACE REVIEW AND LETTERS

Included Journals: EI、SCIE

Volume: 17

Issue: 3

Page Number: 375-381

ISSN: 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.