Magnetoelectric effects in shear-mode magnetostrictive/piezoelectric composite with a Z-type structure
Magnetoelectric effects in shear-mode magnetostrictive/piezoelectric composite with a Z-type structure
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DOI：
10.1080/15376494.2022.2089933
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发表时间：
2022-06-14
影响因子：
2.8
通讯作者：
Du, Jianke
中科院分区：
文献类型：
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作者：
Ding, Benjie;Ma, Tingfeng;Du, Jianke
本研究制备了由超磁致伸缩材料（GMM）和压电板组成的剪切模式三层磁电（ME）层压异质结构。根据理论计算，Z型结构的压电板受到磁致伸缩材料更大的应力，这表明Z型结构的应力传递能力高于传统的S型结构。实验研究表明，Z型结构的磁电耦合系数比S型结构高1.5倍。其ME耦合系数α(M)(E)超过77.63 my/(cm·Oe)，频响范围是S型结构的8倍，振动位移与S型结构的2.2倍相近。还进行了有限元模拟来计算剪切模式三层 ME 层压异质结构的电压分布。由于这种宽带 ME 结构能够进行磁场检测，因此这项研究阐明了 ME 层压异质结构在换能、传感和能量收集方面的适用性。
A shear-mode trilayer magnetoelectric (ME) laminate heterostructure comprising giant magnetostrictive materials (GMMs) and a piezoelectric plate has been prepared in this study. Based on theoretical calculations, the piezoelectric plate with a Z-type structure is subjected to more stress from the magnetostrictive material, which indicates that the stress transfer capacity of the Z-type structure is higher than that of the traditional S-type structure. Experimental research demonstrated that the magnetoelectric coupling coefficient of the Z-type structure is 1.5 times higher than that of the S-type structure. Its ME coupling coefficient alpha(M)(E) exceeded 77.63 my/(cm . Oe), frequency response range was 8 times that of the S-type structure, and vibration displacement was similar to 2.2 times that of the S-type structure. Finite element simulations have also been performed to calculate the voltage distribution of the shear-mode trilayer ME laminate heterostructure. Since such broadband ME structures are capable of magnetic field detection, this research elucidates the applicability of ME laminate heterostructures for transducing, sensing, and energy harvesting.