Enhanced magnetoelectric effects in composite of piezoelectric ceramics, rare-earth iron alloys, and ultrasonic horn
Enhanced magnetoelectric effects in composite of piezoelectric ceramics, rare-earth iron alloys, and ultrasonic horn
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DOI：
10.1063/1.2431469
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发表时间：
2007-01
影响因子：
4
通讯作者：
Ping Li;Y. Wen;L. Bian
中科院分区：
文献类型：
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作者：
Ping Li;Y. Wen;L. Bian
研制了一种由铜超声喇叭、磁致伸缩Terfenol-D(TbxDy1−xFe2)片和多片压电PZT[PZT[Pb(−xTix)O3]片组成的磁电复合材料。超声喇叭会聚并放大振动量，以宽频带驱动PZT片。由多块PZT片电串联/并联而成的复合材料的ME电压系数比以前的PZT和Terfenol-D片层压复合材料的ME电压系数高25倍。采用Q值为104的硅喇叭复合材料和10片串联/并联的PZT片可以获得100倍以上的ME电压系数。
A magnetoelectric (ME) composite consisting of a copper ultrasonic horn, a magnetostrictive Terfenol-D (TbxDy1−xFe2) plate, and multiple piezoelectric PZT [Pb(Zr1−xTix)O3] plates has been developed. The ultrasonic horn converges and amplifies the vibrating magnitude and drives PZT plates at wide bandwidth. The composite with multiple PZT plates electrically connected in series/parallel exhibits a 25 times higher ME voltage coefficient than the previous laminate composite of PZT and Terfenol-D plates. 100 times higher ME voltage coefficients can be obtained by using a silicon horn composite with a higher Q value of 104 and more PZT plates of ten electrically connected in series/parallel.