Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/154648
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dc.contributor.authorDu, Zehuien_US
dc.contributor.authorZhou, Xinranen_US
dc.contributor.authorYe, Pengchengen_US
dc.contributor.authorZeng, Xiaomeien_US
dc.contributor.authorGan, Chee Lipen_US
dc.date.accessioned2021-12-30T06:02:25Z-
dc.date.available2021-12-30T06:02:25Z-
dc.date.issued2020-
dc.identifier.citationDu, Z., Zhou, X., Ye, P., Zeng, X. & Gan, C. L. (2020). Shape-memory actuation in aligned zirconia nanofibers for artificial muscle applications at elevated temperatures. ACS Applied Nano Materials, 3(3), 2156-2166. https://dx.doi.org/10.1021/acsanm.9b02073en_US
dc.identifier.issn2574-0970en_US
dc.identifier.urihttps://hdl.handle.net/10356/154648-
dc.description.abstractArtificial muscle is one of the key technologies to accelerate the development of robotics, automation, and artificial-intelligence-embedded systems. This work aims to develop shape-memory ceramic (SMC) nanofiber-based coiled yarns for artificial muscle applications at elevated temperatures. Highly aligned SMC nanofiber (zirconia-based) yarns and springs have been successfully fabricated by electrospinning. The microstructure and tensile properties of the SMC nanofibers and the shape-memory actuation performance of the SMC yarns/springs have been characterized. A significant shape-memory effect with a recoverable strain of up to ∼5% and short recovery time (0.16 s) has been demonstrated in the SMC yarns at actuation temperatures of 328-388 °C. The SMC springs can lift up to 87 times their own weight when heated by a Bunsen burner, and the stroke is 3.9 mm. The SMC yarns/springs exhibit an output stress of 14.5-22.6 MPa, a work density of 15-20 kJ//m3, and a tensile strength of 100-200 MPa, which are much higher than those of human muscles and some other polymer-based artificial muscles. Benefiting from the advantages of large output stress, high tensile strength, high actuation temperatures, and fast response, the SMC nanofiber-based yarns/springs have a great potential to be used as artificial muscles at elevated temperatures.en_US
dc.language.isoenen_US
dc.relation9011102294en_US
dc.relation9011102296en_US
dc.relation.ispartofACS Applied Nano Materialsen_US
dc.rights© 2020 American Chemical Society. All rights reserved.en_US
dc.subjectEngineering::Materialsen_US
dc.titleShape-memory actuation in aligned zirconia nanofibers for artificial muscle applications at elevated temperaturesen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.contributor.researchTemasek Laboratories @ NTUen_US
dc.identifier.doi10.1021/acsanm.9b02073-
dc.identifier.scopus2-s2.0-85082070090-
dc.identifier.issue3en_US
dc.identifier.volume3en_US
dc.identifier.spage2156en_US
dc.identifier.epage2166en_US
dc.subject.keywordsShape-Memory Ceramicen_US
dc.subject.keywordsNanofibersen_US
dc.description.acknowledgementThe authors would like to acknowledge the funding support under project agreements PA 9011102294 and 9011102296. The authors would like to acknowledge Prof. Zhong Chen from the School of Materials Science and Engineering in NTU for his support in tensile testing.en_US
item.grantfulltextnone-
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