Theoretical study on nonlinear magnetoelectric effect and harmonic distortion behavior in laminated composite
作者： Yang Shi , Yuan-Wen Gao
DOI: 10.1016/J.JALLCOM.2015.05.229
关键词:
摘要: A theoretical model is established for nonlinear magnetoelectric (ME) effect and harmonic distortion behavior in laminated composite, which the complex mechanical-thermo-magnetic characteristics of magnetostrictive phase are taken into consideration. Both low-frequency resonant ME effects derived by elastic mechanics method. In this model, output voltage divided three parts: a dc term, linear ac term term. Considering temperature effect, adopted to predict dependences voltages on bias magnetic field, frequency volume fraction piezoelectric interfacial parameter. Then, competition relationship between discussed. To clearly describe proposed sample, factor θ used characterizing behaviors. The field under different fields also studied. Finally, predictions behaviors with changing obtained. calculated coefficient shows good agreement previous experimental data. It showed that: piezomagnetic present same trend as increases, absolute value increasing field; increasing, decrease; operating has minimal required corresponding optimal voltages, while it cannot alter phase's fraction; presents more frequencies than one range. Also, definite multiple observed voltages; larger leads serious distortion, influenced temperature; can be applied adjust
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