Demonstration of motion control of ZrO2 microparticles in uniform/non-uniform electric field

This study aims to elucidate the mechanism that drives dielectric microparticles under an electric field. The driving of microstructures is affected by various electrical phenomena occurring at the same time such as surface potential, polarization, and electrostatic force. It makes the clarification...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 2018-02, Vol.57 (2S2), p.02CB11
Main Authors: Onishi, Genki, Trung, Ngo Nguyen Chi, Matsutani, Naoto, Nakayama, Tadachika, Suzuki, Tsuneo, Suematsu, Hisayuki, Niihara, Koichi
Format: Article
Language:English
Subjects:
Electric contacts
Electric fields
Electrical phenomena
Image force
Microparticles
Motion control
Zirconium dioxide
Online Access:Get full text
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Summary:This study aims to elucidate the mechanism that drives dielectric microparticles under an electric field. The driving of microstructures is affected by various electrical phenomena occurring at the same time such as surface potential, polarization, and electrostatic force. It makes the clarification of the driving mechanism challenging. A simple experimental system was used to observe the behavior of spherical ZrO2 microparticles in a nonaqueous solution under an electric field. The results suggest that the mechanism that drives the ZrO2 microparticles under an electric field involved the combination of an electric image force, a gradient force, and the contact charging phenomenon. A method is proposed to control the motion of micro- and nanostructures in further study and applications.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAP.57.02CB11