Fault‐Tolerant Dielectric Elastomer Actuators using Single‐Walled Carbon Nanotube Electrodes
Wei Yuan(University of California, Los Angeles), Liangbing Hu(University of California, Los Angeles), Z.B. Yu(University of California, Los Angeles), T. Lam(University of California, Los Angeles), James Biggs, Sung Min Ha(University of California, Los Angeles), Dongjuan Xi(University of California, Los Angeles), Bin Chen(Ames Research Center), Matthew K. Senesky, G. Grüner(University of California, Los Angeles), Qibing Pei(University of California, Los Angeles)
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Abstract
Fault-tolerant actuators. Single-walled carbon nanotubes were studied as new compliant electrodes for dielectric elastomers. The spray-coated SWNT electrodes drive electromechanical strains greater than 200 %. When a fault is present due to pin puncture or internal defect in the elastomer films, dielectric breakdown causes localized self-clearing of the SWNT electrodes and isolation of the fault. The increased fault tolerance may enhance the actuation reliability of dielectric elastomers actuators.
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