Title
Ultrahigh strain hardening in thin palladium films with nanoscale twins Ultrahigh strain hardening in thin palladium films with nanoscale twins
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Weinheim ,
Subject
Physics
Chemistry
Source (journal)
Advanced materials. - Weinheim
Volume/pages
23(2011) :18 , p. 2119-2122
ISSN
0935-9648
ISI
000291164200013
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Nanocrystalline Pd thin films containing coherent growth twin boundaries are deformed using on-chip nanomechanical testing. A large work-hardening capacity is measured. The origin of the observed behavior is unraveled using transmission electron microscopy and shows specific dislocations and twin boundaries interactions. The results indicate the potential for large strength and ductility balance enhancement in Pd films, as needed in membranes for H technologies.
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