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Bulk Nanoporous Metal for Actuation
Author(s) -
Jin HaiJun,
Weissmüller Jörg
Publication year - 2010
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200900329
Subject(s) - nanoporous , materials science , porosity , microstructure , nanoscopic scale , nanotechnology , porous medium , nanopore , metal , homogeneous , corrosion , electrochemistry , specific surface area , millimeter , composite material , chemical engineering , metallurgy , electrode , chemistry , physics , thermodynamics , biochemistry , astronomy , engineering , catalysis
Nanoporous metals prepared by controlled chemical or electrochemical corrosion of alloys can provide prototypical manifestations of bulk nanostructured material. Samples are readily prepared with dimensions at the millimeter or centimeter scale, while at the same time the microstructure is a homogeneous array of interpenetrating solid skeleton phase and pore channels with a characteristic size that can reach down to below 5 nm. The interest in nanoporous metals as functional materials derives from recent observations of unique materials behavior resulting from their extremely small structure size and their open porosity with large volume‐specific surface area. As an example, this article discusses the possible use of nanoporous metal for actuation.