Piezoelectric Characteristics of Low temperature sintering $Pb_{0.76}Ca_{0.24}[(Mn_{1/3}Sb_{2/3})_{0.04}Ti_{0.96}]O_3$ Ceramics with the variation of Poling field

저온소결 $Pb_{0.76}Ca_{0.24}[(Mn_{1/3}Sb_{2/3})_{0.04}Ti_{0.96}]O_3$ 세라믹스의 분극전계에 따른 압전특성

In this paper, in order to develop low temperature sintering $PbTiO_3$-system piezoelectric ceramics for thickness-vibration-mode piezoelectric transformer, $Pb_{0.76}Ca_{0.24}[(Mn_{1/3}Sb_{2/3})_{0.04}Ti_{0.96}]O_3$ ceramics using $0.25wt%CaCO_3$ and 0.2wt%$Li_2CO_3$ as sintering aids were manufactured according to the variation of poling field. Specimens could be sintered at the sintering temperature of $930^{\circ}C$. The piezoelectric properties increased according to the increase of poling field and showed the maximum values (kt=0.49, Qmt=1816, and $d_{33}$=81.4pC/N) under 6.5kV/mm.