dc.contributor.author | Gómez Cortés, José Fernando | |
dc.contributor.author | Nó Sánchez, María Luisa | |
dc.contributor.author | Ruiz Larrea, María Isabel | |
dc.contributor.author | Breczewski Filberek, Tomasz | |
dc.contributor.author | López Echarri, Ángel María | |
dc.contributor.author | Schuh, Christopher A. | |
dc.contributor.author | San Juan Núñez, José María | |
dc.date.accessioned | 2019-05-21T08:09:20Z | |
dc.date.available | 2019-05-21T08:09:20Z | |
dc.date.issued | 2019-03 | |
dc.identifier.citation | Acta Materialia 166 : 346-356 (2019) | es_ES |
dc.identifier.issn | 1359-6454 | |
dc.identifier.issn | 1873-2453 | |
dc.identifier.uri | http://hdl.handle.net/10810/32886 | |
dc.description.abstract | Micro and nano pillars of Copper-based shape memory alloys (SMAs) with feature sizes between about 2 mu m and 250 nm are known to exhibit ultra-high mechanical damping due to the nucleation and motion of stress-induced martensite interfaces during superelastic straining. While this behavior could be extremely useful to protect micro electro-mechanical systems (MEMS) against vibrations in aggressive environments, a fundamental question must yet be answered in order to envisage further applications, namely, whether this damping is reproducible and stable over long times and many cycles, or whether the damping is a signal of accumulating damage that could compromise long-term usage. In the present paper this crucial question is answered; we show that micropillar arrays of Cu-Al-Ni SMAs exhibit a completely recoverable and reproducible superelastic response, with an ultra-high damping loss factor eta > 0.1, or even higher for sub-micrometer pillars, eta > 0.2, even after thousands of cycles (>5000) and after long times spanning more than four years. Furthermore, the first high-frequency tests on such nanoscale SMAs show that their superelastic response is very fast and relevant to ultra-high damping even at frequencies as high as 1000 Hz. This paves the way for the design of micro/nano dampers, based on SMAs, to improve the reliability of MEMS in noisy environments. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). | es_ES |
dc.description.sponsorship | This work was supported by the Spanish Ministry of Economy and Competitiveness, MINECO, projects MAT2012-36421, MAT2017-84069P, CONSOLIDER-INGENIO 2010 CSD2009-00013, as well as by the Consolidated Research Group IT-10-310 and the ELKARTEK-ACTIMAT project from the Education and Industry Departments of the Basque Government, Spain, and GIU-17/071 from the University of the Basque Country, UPV/EHU. Co-funding from H2020 REACT Project Grant No 640241 from European Community and EOARD Grant No FA8655-10-1-3074 (USA) are also acknowledged. This work made use of the FIB facilities of the SGIKER from the UPV/EHU. CAS acknowledges the support of the Institute for Soldier Nanotechnologies, funded by the U.S. Army Research Office at MIT, under contract number W911NF-13-D-0001. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/MAT2012-36421 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/MAT2017-84069P | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/CONSOLIDER-INGENIO 2010 CSD2009-00013 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
dc.subject | shape memory alloys | es_ES |
dc.subject | Cu-Al-Ni | es_ES |
dc.subject | martensitic transformation | es_ES |
dc.subject | nanoindentation | es_ES |
dc.subject | damping capacity | es_ES |
dc.subject | transformation characteristics | es_ES |
dc.subject | micron-scale | es_ES |
dc.subject | behavior | es_ES |
dc.subject | fatigue | es_ES |
dc.subject | hysteresis | es_ES |
dc.subject | dependence | es_ES |
dc.subject | nanoscale | es_ES |
dc.subject | phase | es_ES |
dc.title | Ultrahigh Superelastic Damping at the Nano-Scale: a Robust Phenomenon to Improve Smart MEMS Devices | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | cc logo Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) | es_ES |
dc.rights.holder | Atribución-NoComercial-SinDerivadas 3.0 España | * |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S1359645418309947?via%3Dihub | es_ES |
dc.identifier.doi | 10.1016/j.actamat.2018.12.043 | |
dc.departamentoes | Física aplicada II | es_ES |
dc.departamentoes | Física de la materia condensada | es_ES |
dc.departamentoeu | Fisika aplikatua II | es_ES |
dc.departamentoeu | Materia kondentsatuaren fisika | es_ES |