摘要
固相法合成0．03PZN-0．03PSN-0．04PMS-0．09PZT五元系压电陶瓷，锆钛比为变量。研究了一、二次合成工艺对压电性能的影响。当采用一次合成工艺时，系统准同型相界在Zr／Ti为0．445／0．455～0．44／0．46附近；采用二次合成工艺后，系统的准同型相界向富Zr的方向发生了移动。采用二次合成工艺比一次合成工艺效果好，在烧结温度为1260℃，Zr／Ti-0．435／0．465时，性能最好，其介电损耗tan δ=0．30％；ε23^T=1143；d33=303pC／N；Qm=1233；kp=55．1％；Tc=309℃。二次合成使d33、kp、ε23^T五及矫顽场强Ec和剩余极化强度Pr都要比一次合成的试样的高。
0.03PZN-0.03PSN-0.04PMS-0.9PZT quinary system with various Zr/Ti ratios were prepared by traditional method. The effect of calcining process on the piezoelectric properties was studied. The MPB lied in between Zr/Ti=0. 445/0. 455 and Zr/Ti= 0.44/0.46 when the calcining process is one step. If two-step calcining is applied, the MPB will move toward Zr-rich direction. It indicated that two step calcining process which contribute to improvement of d33 ,kp, εr3^T , Ec, Pr and the decreasing of Qm、 Tc is better than one step process. The optimized result of er ： 1 143,d33 ： 303 pC/N, kp = 55.1 %, tan δ= 0.3 %, Qm = 1 233, Tc = 309 ℃ was obtained when the sintering temperature was 1 260 ℃ and Zr/Ti is equal to 0. 435/0. 465.
出处
《压电与声光》
CSCD
北大核心
2006年第2期249-252,共4页
Piezoelectrics & Acoustooptics
基金
天津大学先进陶瓷及加工技术教育部重点实验室基金资助项目
关键词
二次合成
五元系压电陶瓷
准同型相界
压电性能
two-step method
quirnary system
morphotropic phase boundary （MPB）
piezoelectric properties
