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Gallium Adhesion: Phase Change of Gallium Enables Highly Reversible and Switchable Adhesion (Adv. Mater. 25/2016)
Author(s) -
Ye Zhou,
Lum Guo Zhan,
Song Sukho,
Rich Steven,
Sitti Metin
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201670176
Subject(s) - gallium , materials science , adhesion , adhesive , phase (matter) , nanotechnology , composite material , layer (electronics) , metallurgy , organic chemistry , chemistry
M. Sitti and co‐workers find that gallium exhibits highly reversible and switchable adhesive characteristics during the liquid–solid phase change. As described on page 5088, this reversible adhesive allows miniature capsule‐like robots, which are able to easily pick‐and‐place objects with irregular geometries and rough surfaces, and thus assemble such objects into a complex structure. The contact interface between gallium and the rough object is illustrated in the magnified image.