PMN-PT single crystal and Terfenol-D alloy magnetoelectric laminated composites for electromagnetic device applications

被引：0

作者：

Wang, Yaojin ^{[1
,2
]}

Cheung, Kwok Fung ^{[1
]}

Or, Sin Wing ^{[1
]}

Chan, Helen Lai Wa ^{[1
]}

Luo, Haosu ^{[2
]}

机构：

[1] Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 201800, Peoples R China

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2008年 / 116卷 / 1352期

关键词：

converse magnetoelectric effect; electromagnetic control device; magnetoelectric laminated composite; magnetostrictive alloy; piezoelectric single crystal;

D O I：

10.2109/jcersj2.116.540

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Magnetoelectric laminated composites of a length-magnetized magnetostrictive Tb0.3Dy0.7Fe1.92 (Terfenol-D) alloy plate sandwiched between two thickness-polarized, electro-parallel-connected piezoelectric 0.7Pb (Mg1/3Nb2/3)O-3-0.3PbTiO(3) (PMN-PT) single crystal plates were fabricated and their converse magnetoelectric properties were evaluated. An electromagnetic control device using a laminated composite as the control element and an Alnico biasing magnet, two Mn-Zn F-yokes and a Mu-metal movable plate as the magnetic circuit was developed and characterized. The distribution of the dc magnetic flux lines and magnetic inductions of the device were analyzed using a finite element method. The quasistatic and dynamic magnetic inductions of the device were measured, together with the generative forces. The results revealed that the device has linear voltage-controlled magnetic inductions in excess of 0.6 G/V with flat responses in the measured frequency range of 0.1-40 kHz and large generative forces over 0.7 N at 160 V at the designated gaps of 1.0-1.2 mm. This coil-free device could be useful in broad-band and precision magnetic flux/force control applications with negligible Joule heating losses. (C) 2008 The Ceramic Society of Japan. All rights reserved.

引用

页码：540 / 544

页数：5

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