Superamphiphobic CaLi-based bulk metallic glasses

A superamphiphobic (both superhydrophobic and superoleophobic) CaLi-based bulk metallic glass (BMG) surface was constructed by etching the surface with water and modifying the etched surface with fluoroalkylsilane coating. The modified surface exhibits high corrosion resistance and stable superamphiphobicity with a high static contact angle of more than 150 degrees these properties could extend the practical applications of BMGs. The superamphiphobicity mechanism of the BMG is discussed. The facile method can be used to form other BMG surfaces with special wettability. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.