Current-voltage characteristics of lead zirconate titanate/nickel bilayered hollow cylindrical magnetoelectric composites  

作　　者：潘德安 张深根 田建军 孙俊赛 Alex A.Volinsky 乔利杰 

机构地区：[1]School of Materials Science and Engineering,University of Science and Technology Beijing [2]Faculty of Materials and Metallurgical Engineering,Kunming University of Science and Technology [3]Department of Mechanical Engineering,University of South Florida,Tampa FL 33620,USA

出　　处：《Chinese Physics B》2010年第2期429-434,共6页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 50572006, 50802008 and 50874010);the Natural Science Foundation of Beijing, China (Grant No. 2073026);the Program for New Century Excellent Talents in University(Grant No. 20060420152);Scholars and Innovative Research Team in University (Grant No. 0509);Alex A. Volinsky wouldlike to acknowledge support from NSF (Grant No. CMMI-0600266)

摘　　要：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.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.

关 键 词：current--voltage coefficient bilayered cylindrical composites electromechanical resonance current sensor 

分 类 号：TB33[一般工业技术—材料科学与工程]