The Investigation on the Heat-generation Phenomenon of BNT-BT Ceramics

To make BNT-BT ceramics, in this study, we put amount of small BaTiO₃ (BT) which has the characteristics of the ferroelectric and the tetragonal structure at the normal temperature in BNT. The temperature goes up very fast to the maximum, 100degC for first 3 minutes and then it is saturated. We can recognize from the P-E curve that much more generation of heat is accompanied the impressed electric field increases. This is natural because as the thermal loss is proportioned to the square of electric field in case of regular resistance if the electric field goes up. Therefore, in this study, we show the heat-generation phenomenon and temperature stabilization of the BNT-BT ceramic which can be used as a reference to develope better BNT-BT ceramic.