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dc.contributor.authorChen, Ying
dc.contributor.authorSchuh, Christopher A.
dc.contributor.authorUeland, Stian Melhus
dc.date.accessioned2013-08-26T21:04:25Z
dc.date.available2013-08-26T21:04:25Z
dc.date.issued2012-03
dc.date.submitted2011-12
dc.identifier.issn1616301X
dc.identifier.issn1616-3028
dc.identifier.urihttp://hdl.handle.net/1721.1/80287
dc.description.abstractCopper-based shape memory alloys (SMAs) exhibit excellent shape memory properties in single crystalline form. However, when they are polycrystalline, their shape memory properties are severely compromised by brittle fracture arising from transformation strain incompatibility at grain boundaries and triple junctions. Oligocrystalline shape memory alloys (oSMAs) are microstructurally designed SMA structures in which the total surface area exceeds the total grain boundary area, and triple junctions can even be completely absent. Here it is shown how an oligocrystalline structure provides a means of achieving single crystal-like SMA properties without being limited by constraints of single crystal processing. Additionally, the formation of oSMAs typically involves the reduction of the size scale of specimens, and sample size effects begin to emerge. Recent findings on a size effect on the martensitic transformation in oSMAs are compared and a new regime of heat transfer associated with the transformation heat evolution in these alloys is discussed. New results on unassisted two-way shape memory and the effect of loading rate in oSMAs are also reported.en_US
dc.description.sponsorshipUnited States. Army Research Office (Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies)en_US
dc.language.isoen_US
dc.publisherWiley Blackwellen_US
dc.relation.isversionofhttp://dx.doi.org/10.1002/adfm.201103019en_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alike 3.0en_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/en_US
dc.sourceProf. Schuh via Angie Locknaren_US
dc.title[MRO] Oligocrystalline Shape Memory Alloysen_US
dc.typeArticleen_US
dc.identifier.citationUeland, Stian M., Ying Chen, and Christopher A. Schuh. “Oligocrystalline Shape Memory Alloys.” Advanced Functional Materials 22, no. 10 (May 23, 2012): 2094-2099.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Materials Science and Engineeringen_US
dc.contributor.approverSchuh, Christopher A.en_US
dc.contributor.mitauthorUeland, Stian Melhusen_US
dc.contributor.mitauthorSchuh, Christopher A.en_US
dc.contributor.mitauthorChen, Yingen_US
dc.relation.journalAdvanced Functional Materialsen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsUeland, Stian M.; Chen, Ying; Schuh, Christopher A.en_US
dc.identifier.orcidhttps://orcid.org/0000-0001-9856-2682
mit.licenseOPEN_ACCESS_POLICYen_US


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