| Title |
Structural & electrical properties of PbTi{O}_{3} system as a function of Mn{O}_{2} addition |
| Authors |
홍재일 ; 유주현 ; 윤현상 ; 윤광희 ; 장낙원 ; 박창엽 |
| Keywords |
Tetragonality ; Electromechanical Coupling Factor Planar Mde Kp ; Grain |
| Abstract |
In this study, the structural, electrical and dielectric properties were investigated in (P b_{0.76} Ca_{0.24})[( Co_{1}2/ W_{1}2/)_{0.04} Ti_{0.96}) O_{3} system ceramics which were manufactured with the addition of Mn O_{2}. According to the increment of Mn O_{2} addition, tetragonality was decreased. The specimen added with 1.5 mol% Mn O_{2} and sintered at 1150.deg. C showed the highest density of 7.06[g/c m^{3}]. The variations of grain xize as a function of Mn O_{2} addition were negligibly small. But grain was grown until 7.88[.mu.m] with increasing sintering temperature. Electromechamical coupling factor planar mode K_{p} was decreased to a small value of K_{p} = 0 in all the specimens added with Mn O_{2} and sintered at 1150.deg. C & 1200.deg. C.& 1200.deg. C. |