Volume change during the formation of nanoporous gold by dealloying.
We report a macroscopic shrinkage by up to 30 vol % during electrochemical dealloying of Ag-Au. Since the original crystal lattice is maintained during the process, we suggest that the formation of nanoporous gold in our experiments is accompanied by the creation of a large number of lattice defects and by local plastic deformation.
Parida
S
S
Forschungszentrum Karlsruhe, Karlsruhe, Germany.
Kramer
D
D
Volkert
C A
CA
Rösner
H
H
Erlebacher
J
J
Weissmüller
J
J