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首页> 外文OA文献 >Dual-resonance converse magnetoelectric and voltage step-up effects in laminated composite of long-type 0.71Pb(Mg₁/₃Nb₂/₃)O₃-0.29PbTiO₃piezoelectric single-crystal transformer and Tb₀.₃Dy₀.₇Fe₁.₉₂magnetostrictive alloy bars
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Dual-resonance converse magnetoelectric and voltage step-up effects in laminated composite of long-type 0.71Pb(Mg₁/₃Nb₂/₃)O₃-0.29PbTiO₃piezoelectric single-crystal transformer and Tb₀.₃Dy₀.₇Fe₁.₉₂magnetostrictive alloy bars

机译：长型0.71Pb（Mg₁/₃Nb2 /₃）O₃-0.29PbTiO₃压电单晶变压器和Tb₀.₃Dy₀.₇Fe₁.₉2磁致伸缩合金棒的叠层复合材料中的双共振逆磁电和升压效应

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We report a dual-resonance converse magnetoelectric effect and a dual-resonance voltage step-up effect in a laminated composite made by sandwiching the output (or secondary) section of a long-type 0.71Pb(Mg₁/₃Nb₂/₃)O₃-0.29PbTiO₃(PMN–PT) piezoelectric single-crystal transformer having a longitudinal-longitudinal polarization between two Tb₀.₃Dy0₀.7Fe₁.₉₂ (Terfenol-D) magnetostrictive alloy bars having a longitudinal magnetization. The report ed converse magnetoelectric effect originates from the mechanically mediated resonance converse piezoelectric effect in the PMN–PT transformer and resonance converse magnetostrictive effect in the Terfenol-D bars. The additional voltage step-up effect results from the mechanically mediated resonance converse and direct piezoelectric effects in the PMN–PT transformer. The composite shows two sharp resonance peaks of 0.39 and 0.54 G/V in converse magnetoelectric coefficient (αᵦ=dB/dV[sub in]) and of 1.4 and 2.1 in voltage step-up ratio (V[sub out]/V[sub in]) at about 54 and 120 kHz, corresponding to the half- and full-wavelength longitudinal mode resonances, respectively. The measured magnetic induction (B)exhibits good linear relationships to the applied ac voltage (V[sub in]) with amplitude varying from 10 to 100 V in both resonance and nonresonance conditions. These dual-resonance effects make the composite great promise for coil-free electromagnetic device applications.
机译：我们报告了通过将长型0.71Pb（Mg₁/₃Nb2/₃）O₃-0.29的输出（或次级）部分夹在中间而制成的层压复合材料中的双共振逆磁电效应和双共振电压升压效应。在两个具有纵向磁化强度的Tb₀.₃Dy0having.7Fe₁.₉2（Terfenol-D）磁致伸缩合金棒之间具有纵向纵向极化的PbTiO₃（PMN-PT）压电单晶变压器。报告的逆磁电效应源自PMN-PT变压器中机械介导的共振逆压电效应和Terfenol-D棒中的共振逆磁致伸缩效应。额外的升压效应是由PMN-PT变压器中的机械介导的共振反作用和直接压电效应产生的。该复合材料在反向磁电系数（αᵦ= dB / dV [sub in]）中显示两个尖锐的共振峰，分别为0.39和0.54 G / V，在升压比（V [sub out] / V [sub]中显示为1.4和2.1的两个峰。在大约54和120kHz处，分别对应于半波长和全波长纵向模式共振。在谐振和非谐振条件下，测得的磁感应强度（B）与施加的交流电压（V [sub in]）都具有良好的线性关系，幅度在10到100 V之间变化。这些双重共振效应使该复合材料在无线圈电磁设备应用中大有希望。

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