fig2
Figure 2. P-E loops measured at room temperature for (A) undoped BaTiO3 ceramics with a grain size of 1.2 µm and 76 µm, (B) undoped BaTiO3 ceramics sintered at 10-2 atm pO2 and 10-9 atm pO2, (C) formulated BaTiO3 ceramics sintered 10-2 atm pO2 and 10-9 atm pO2, and (D) model MLCCs with various grain sizes. The ac frequency was 10 Hz.
