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Current-voltage characteristics of lead zirconate titanate/nickel bilayered hollow cylindrical magnetoelectric composites |
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| Authors: | Pan De-An Zhang Shen-Gen Tian Jian-Jun Sun Jun-Sai Alex A Volinsky and Qiao Li-Jie |
| Institution: | School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China; Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China; Department of Mechanical Engineering, University of South Florida, Tampa FL 33620, USA |
| Abstract: | Current--voltage measurements obtained from lead zirconate titanate/nickel bilayered hollow cylindrical magnetoelectric composite showed that a sinusoidal current applied to the copper coil wrapped around the hollow cylinder circumference induces voltage across the lead zirconate titanate layer thickness. The current--voltage coefficient and the maximum induced voltage in lead zirconate titanate at 1~kHz and resonance (60.1~kHz) frequencies increased linearly with the number of the coil turns and the applied current. The resonance frequency corresponds to the electromechanical resonance frequency. The current--voltage coefficient can be significantly improved by optimizing the magnetoelectric structure geometry and/or increasing the number of coil turns. Hollow cylindrical lead zirconate titanate/nickel structures can be potentially used as current sensors. |
| Keywords: | current--voltage coefficient bilayered cylindrical composites electromechanical resonance current sensor |
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