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dc.contributor.author김선정-
dc.date.accessioned2017-06-01T05:11:20Z-
dc.date.available2017-06-01T05:11:20Z-
dc.date.issued2015-09-
dc.identifier.citationNano Convergence, v. 2, Page. 1-9en_US
dc.identifier.issn2196-5404-
dc.identifier.urihttps://link.springer.com/article/10.1186/s40580-014-0036-0-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/27557-
dc.description.abstractHigh performance torsional and tensile artificial muscles are described, which utilize thermally- or electrochemically-induced volume changes of twist-spun, guest-filled, carbon nanotube (CNT) yarns. These yarns were prepared by incorporating twist in carbon nanotube sheets drawn from spinnable CNT forests. Inserting high twist into the CNT yarn results in yarn coiling, which can dramatically amplify tensile stroke and work capabilities compared with that for the non-coiled twisted yarn. When electrochemically driven in a liquid electrolyte, these artificial muscles can generate a torsional rotation per muscle length that is over 1000 times higher than for previously reported torsional muscles. All-solid-state torsional electrochemical yarn muscles have provided a large torsional muscle stroke (53° per mm of yarn length) and a tensile stroke of up to 1.3% when lifting loads that are ~25 times heavier than can be lifted by the same diameter human skeletal muscle. Over a million torsional and tensile actuation cycles have been demonstrated for thermally powered CNT hybrid yarns muscles filled with paraffin wax, wherein a muscle spins a rotor at an average 11,500 revolutions/minute or delivers 3% tensile contraction at 1200 cycles/minute. At lower actuation rates, these thermally powered muscles provide tensile strokes of over 10%.en_US
dc.description.sponsorshipThis work was supported in Korea by the Creative Research Initiative Center for Bio-Artificial Muscle of the Ministry of Science, ICT & Future Planning (MSIP), the MSIP-US Air Force Cooperation Program (NRF-2013K1A3A1A32035592) and the Industrial Strategic Technology Program (10038599) and in the United States by Air Force Grant AOARD-13-4119, Air Force Office of Scientific Research grant FA9550-12-1-0211, and Robert A. Welch Foundation grant AT-0029.en_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.subjectArtificial muscleen_US
dc.subjectYarn muscleen_US
dc.subjectCarbon nanotube muscleen_US
dc.subjectElectrochemical actuatoren_US
dc.subjectThermal actuatoren_US
dc.titleHigh performance electrochemical and electrothermal artificial muscles from twist-spun carbon nanotube yarnen_US
dc.typeArticleen_US
dc.relation.volume2-
dc.identifier.doi10.1186/s40580-014-0036-0-
dc.relation.page1-9-
dc.relation.journalNano Convergence-
dc.contributor.googleauthorLee, Jae Ah-
dc.contributor.googleauthorBaughman, Ray H-
dc.contributor.googleauthorKim, Seon Jeong-
dc.relation.code2016042185-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDIVISION OF ELECTRICAL AND BIOMEDICAL ENGINEERING-
dc.identifier.pidsjk-


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