Magnetoelectric effect in composites of magnet, metal-cap, and piezoceramic

被引：8

作者：

Jia, Y. M.

Or, S. W.

Lam, K. H.

Chan, H. L. W.

Tang, Y. X.

Zhao, X. Y.

Luo, H. S.

机构：

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

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

[3] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2007年 / 86卷 / 04期

关键词：

Repellent Effect; NdFeB Magnet; Piezoelectric Voltage; Disk Assembly; Current Composite;

D O I：

10.1007/s00339-006-3805-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the magnetoelectric (ME) effect in three-phase magnet-metal-cap-piezoceramic composites of a thickness-polarized Pb(Zr,Ti)O-3 disk bonded between two truncated conical brass caps and two thickness-magnetized NdFeB magnets along the thickness direction. The effect originated from the product of the magnetic attractive-repellent effect in the magnets and the amplified piezoelectric effect in the cap-disk assembly. The composites exhibited a ME voltage coefficient alpha(V) of similar to 2.6 mV/Oe in the non-resonance frequency range of 0.1-10 kHz with good voltage-field linearity in the field range of 10(-3)-10 Oe, besides an enhanced alpha(V) of 167.4 mV/Oe at a resonance frequency of 14.4 kHz. Compared to conventional two-phase and three-phase magnetostrictive material-contained ME composites, these composites possessed two distinct benefits of higher property-tailorable flexibility and requiring no external dc bias magnetic field to enable an obvious alpha(V).

引用

页码：525 / 528

页数：4

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