Analysis of the low-frequency magnetoelectric performance in three-phase laminate composites with Fe-based nanocrystalline ribbon

作者：Chen Lei^*; Li Ping; Wen Yumei; Zhu Yong

来源：Smart Materials and Structures, 2013, 22(11): 115031.

DOI：10.1088/0964-1726/22/11/115031

The theoretical analysis of magnetoelectric (ME) performance in three-phase Terfenol-D/PZT/FeCuNbSiB (MPF) laminate composite is presented in this paper. The ME couplings at low frequency for ideal and less than ideal interface couplings are studied, respectively, and our analysis predicts that (i) the ME voltage coefficient for ideal interface coupling increases with the increasing layers (n) of Fe-based nanocrystalline ribbon FeCuNbSiB (Fe73.5Cu1Nb3Si13.5B9) while the sizes of PZT (Pb(Zr1-xTix)O-3) and Terfenol-D (Tb1-xDyxFe2-y) are kept constant, and then it tends to be a constant when the layers of FeCuNbSiB are > 100; (ii) by introducing the interface coupling factor k and considering the degradation of d(33m,f) with n, the ME voltage coefficient for a less than ideal interface condition is predicted. As the FeCuNbSiB layer increases, it first increases and reaches to a maximum value, and then slowly decreases. Various MPF laminates are fabricated and tested. It is found that the theoretical predictions for the consideration of actual boundary conditions at the interface are in agreement with the experimental observations. This study plays a guiding role for the design of MPF composite in real applications.

• 出版日期2013-11
• 单位重庆大学