fig5
Figure 5. (A) Unipolar P-E loops for (1-x)BT-xNN ceramics at 25 °C, 20 MV m-1 and 10 Hz. (B) Pmax, Pr and Pmax - Pr as a function of NN content. (C) Unipolar P-E loops at 25 °C, maximum applied electric field and 10 Hz. (D) Energy storage properties as a function of NN content.