Magnetoelectric effect in composite of ferromagnetic constant-elasticity alloy, piezoelectric ceramic and FeSiB ribbon

A laminate composite of magnetostrictive ferromagnetic constant-elasticity alloy(FCEA), piezoelectric ceramic (Pb(Zr,Ti)O₃) and high permeability FeSiB ribbon is reported in this paper. High permeability FeSiB layers act as flux concentrators. By attaching high permeability FeSiB ferromagnetic layers at both ends of the ME FCEA/PZT laminate, a higher magnetoelectric effect can be achieved at resonace. The results show that (i) the resonant frequency of layered FCEA/PZT/FeSiB composite decreases with increasing the length of FeSiB (L); (ii) the resonant frequency of FCEA/PZT/FeSiB is equal to the resonant frequency of FCEA/PZT when L is 14mm; and (iii) the maximum resonant ME voltage of FCEA/PZT/FeSiB composite with L of 14mm is up to 6 times higher than that of FCEA/PZT composite.