PSN-PZN-PZT四元系压电陶瓷的研究  

PSN-PZN-PZT Quaternary Piezoelectric Ceramics

作　　者：赵莎莎[1] 孙清池[1] 吴浩[1] 

机构地区：[1]天津大学材料学院,天津300072

出　　处：《无机材料学报》2006年第2期375-380,共6页Journal of Inorganic Materials

基　　金：天津大学先进陶瓷及加工技术教育部重点实验室(x06050)

摘　　要：采用传统的固相烧结方法制备了Pb(Sn1／3Nb2／3)O3-Pb(Zn1／3Nb2／3)O3-PbZrO3-PbTiO3 (PSN-PZN-PZT)四元系压电陶瓷,并通过添加MnO2、Sb2O3和Cr2O3以及改变Zr／Ti比来达到提高Kp和Qm的目的．同时也对Zr／Ti比对材料温度稳定性的影响进行了分析．实验结果表明:在960℃的预烧温度、1240℃的烧成温度下,添加少量的MnO2、Sb2O3 和一部分Cr掺杂,得到综合性能优良的压电材料:室温下介电常数ε33T／ε0=1669,压电常数 d33=285×10-12C／N,机械品质因数Qm=2179,机电耦合系数Kp=54．9％,介电损耗tanδ=0．4％．可以满足超声马达和压电变压器等应用方面的要求．Pb（Sn1/3Nb2/3）O3-Pb（Zn1/3Nb2/3）O3-PbZrO3-PbTiO3 quaternary piezoelectric ceramics were prepared by conventional solid reaction sintering. The samples were gained by changing the ratio of Zr/Ti and adding MnO2, Sb2O3 and Cr in order to enhance the values of Kp and Qm. The effect of Zr/Ti ratio on the temperature stability of the system was also studied. The results indicate that when calcination temperature is 960℃ and sintering temperature is 1240℃, the comprehensive and excellent materials can be made to fit the request of high power devices such as piezoelectric actuator and ultrasonic motor, and the main parameters are as follows： dielectric constant at room temperature ε33^T/ε0 =1669, piezoelectric constant d33=285× 10^-12C/N, mechanical quality factor Qm=2179, planar coupling coefficient Kp=54.9%, dielectric loss tanδ=0.4%.

关 键 词：压电陶瓷 介电和压电性能 准同型相界 温度稳定性 

分 类 号：TM282[一般工业技术—材料科学与工程]