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Materials 2018, 11(5), 753; https://doi.org/10.3390/ma11050753

Fe3O4–Silicone Mixture as Flexible Actuator

Center for Intelligent & Interactive Robotics, Korea Institute of Science and Technology, Hwarangro 14gil 5, Seongbuk-gu, Seoul 02792, Korea
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Received: 20 April 2018 / Revised: 3 May 2018 / Accepted: 4 May 2018 / Published: 8 May 2018
(This article belongs to the Special Issue Smart Materials for Soft Sensors and Actuators)
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Abstract

In this study, we introduce Fe3O4-silicone flexible composite actuators fabricated by combining silicone and iron oxide particles. The actuators exploit the flexibility of silicone and the electric conductivity of iron oxide particles. These actuators are activated by electrostatic force using the properties of the metal particles. Herein, we investigate the characteristic changes in actuation performance by increasing the concentration of iron oxide from 1% to 20%. The developed flexible actuators exhibit a resonant frequency near 3 Hz and their actuation amplitudes increase with increasing input voltage. We found that the actuator can move well at metal particle concentrations >2.5%. We also studied the changes in actuation behavior, depending on the portion of the Fe3O4-silicone in the length. Overall, we experimentally analyzed the characteristics of the newly proposed metal particle-silicone composite actuators. View Full-Text
Keywords: soft active materials; flexible actuator; electrostatic force soft active materials; flexible actuator; electrostatic force
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Song, K.; Cha, Y. Fe3O4–Silicone Mixture as Flexible Actuator. Materials 2018, 11, 753.

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