Please use this identifier to cite or link to this item:
Title: Shape-memory actuation in aligned zirconia nanofibers for artificial muscle applications at elevated temperatures
Authors: Du, Zehui
Zhou, Xinran
Ye, Pengcheng
Zeng, Xiaomei
Gan, Chee Lip
Keywords: Engineering::Materials
Issue Date: 2020
Source: Du, 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.
Project: 9011102294
Journal: ACS Applied Nano Materials
Abstract: Artificial 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.
ISSN: 2574-0970
DOI: 10.1021/acsanm.9b02073
Rights: © 2020 American Chemical Society. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles
TL Journal Articles

Citations 20

Updated on Dec 30, 2021

Page view(s)

Updated on Jul 3, 2022

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.