Abstract:The composite piezomagnetic film was prepared by using Fe73.5CulNb1.5Si13.5B9Mo1.5 amorphous powder with particles size of 40 μm as dispersing agent and silicon rubber as the matrix. Meanwhile, the Fe73.5CulNb3Si13.5B9 amorphous ribbon was selected as piezoelectric layer. The testing frequency was ranged from 10 kHz to 1 MHz, and the pressure stress was from 0 to 0.14 MPa. The tiny stress impedance (TST) effects of the two types of layer structures were compared in the experiment, the two types included piezomagnetic/piezoelectric/piezomagnetic (pm/pe/pm) layer and piezoelectric/piezomagnetic/piezoelectric (pe/pm/pe) layer. It is found that both of the layer structures have magnetoelectricity coupling effects. The magnetoelectricity coupling effect enhances with the increase of pressure stress before 0.02 MPa, and afterward the magnetoelectricity coupling effect comes to a maximum value, which has little contribution to TSI. Since two types of layer structure are both of varying magnetoelectricity coupling effect, pm/pe/pm is piezomagnetic based and pe/pm/pe is piezoelectric based.