{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/96453"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/96453","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"Cu-based shape memory microwires : towards complex structures","abstract":"Shape memory alloys are a distinctive type of material that exhibits the fascinating properties of the shape memory effect and superelasticity. Shape memory properties are characterized by the diffusionless phase transformation between austenite and martensite that can be thermally or stress induced. Cu-based shape memory alloys provide an exciting area of research due to lower costs and higher working temperatures compared to Ni-Ti alloys prevalent in industry today. This work investigates the shape memory properties of oligocrystalline Cu-Al-Ni and Cu- Al-Mn-Ni microwires produced using a melt spinner. The melt spinner yielded continuous wires in quantities useful for the creation of complex structures. The composition of the wires is observed to change throughout processing of alloys and wires. Electropolishing rates were determined for improving surface texture and size constraint.","abstract_html":"Shape memory alloys are a distinctive type of material that exhibits the fascinating properties of the shape memory effect and superelasticity. Shape memory properties are characterized by the diffusionless phase transformation between austenite and martensite that can be thermally or stress induced. Cu-based shape memory alloys provide an exciting area of research due to lower costs and higher working temperatures compared to Ni-Ti alloys prevalent in industry today. This work investigates the shape memory properties of oligocrystalline Cu-Al-Ni and Cu- Al-Mn-Ni microwires produced using a melt spinner. The melt spinner yielded continuous wires in quantities useful for the creation of complex structures. The composition of the wires is observed to change throughout processing of alloys and wires. Electropolishing rates were determined for improving surface texture and size constraint.","abstract_has_math":false,"creators":["Gager, Mac (Brian McClure, Jr.)"],"institution":"Massachusetts Institute of Technology","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":"Massachusetts Institute of Technology. Department of Materials Science and Engineering.","school":null,"contributors":[],"advisors":["Christopher A. Schuh."],"committee_chairs":[],"committee_members":[],"year":2014,"date_issued":"2014","date_published":"2014","updated_at":"2026-07-22T22:20:51Z","subjects":["Materials Science and Engineering."],"languages":["eng"],"rights":["M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."],"rights_urls":["http://dspace.mit.edu/handle/1721.1/7582"],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/1721.1/96453","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Christopher A. Schuh."]},{"key":"dc:contributor.department","label":"Department","values":["Massachusetts Institute of Technology. Department of Materials Science and Engineering."]},{"key":"dc:contributor.other","label":"Dc Contributor Other","values":["Massachusetts Institute of Technology. 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They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://dspace.mit.edu/handle/1721.1/7582"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/1721.1/96453"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Thesis: S.B., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2014.","Cataloged from PDF version of thesis.","Includes bibliographical references (page 33)."]},{"key":"dc:description.abstract","label":"Abstract","values":["Shape memory alloys are a distinctive type of material that exhibits the fascinating properties of the shape memory effect and superelasticity. Shape memory properties are characterized by the diffusionless phase transformation between austenite and martensite that can be thermally or stress induced. Cu-based shape memory alloys provide an exciting area of research due to lower costs and higher working temperatures compared to Ni-Ti alloys prevalent in industry today. This work investigates the shape memory properties of oligocrystalline Cu-Al-Ni and Cu- Al-Mn-Ni microwires produced using a melt spinner. The melt spinner yielded continuous wires in quantities useful for the creation of complex structures. The composition of the wires is observed to change throughout processing of alloys and wires. Electropolishing rates were determined for improving surface texture and size constraint."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["S.B."]},{"key":"dc:title","label":"Title","values":["Cu-based shape memory microwires : towards complex structures"]}]}],"canonical_facts":{"dc:contributor.advisor":["Christopher A. Schuh."],"dc:contributor.department":["Massachusetts Institute of Technology. Department of Materials Science and Engineering."],"dc:contributor.other":["Massachusetts Institute of Technology. Department of Materials Science and Engineering."],"dc:creator":["Gager, Mac (Brian McClure, Jr.)"],"dc:date.accessioned":["2015-04-08T18:01:54Z"],"dc:date.available":["2015-04-08T18:01:54Z"],"dc:date.issued":["2014"],"dc:description":["Thesis: S.B., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2014.","Cataloged from PDF version of thesis.","Includes bibliographical references (page 33)."],"dc:description.abstract":["Shape memory alloys are a distinctive type of material that exhibits the fascinating properties of the shape memory effect and superelasticity. Shape memory properties are characterized by the diffusionless phase transformation between austenite and martensite that can be thermally or stress induced. Cu-based shape memory alloys provide an exciting area of research due to lower costs and higher working temperatures compared to Ni-Ti alloys prevalent in industry today. This work investigates the shape memory properties of oligocrystalline Cu-Al-Ni and Cu- Al-Mn-Ni microwires produced using a melt spinner. The melt spinner yielded continuous wires in quantities useful for the creation of complex structures. The composition of the wires is observed to change throughout processing of alloys and wires. Electropolishing rates were determined for improving surface texture and size constraint."],"dc:description.degree":["S.B."],"dc:identifier.uri":["http://hdl.handle.net/1721.1/96453"],"dc:language.iso":["eng"],"dc:publisher":["Massachusetts Institute of Technology"],"dc:rights":["M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."],"dc:rights.uri":["http://dspace.mit.edu/handle/1721.1/7582"],"dc:subject":["Materials Science and Engineering."],"dc:title":["Cu-based shape memory microwires : towards complex structures"],"dc:type":["Thesis"]},"updated_at":"2026-07-22T22:20:51Z"}