MnO_2和Nb_2O_5掺杂Pb(Mn_(1/3)Sb_(2/3))_(0.05)Zr_(0.47)Ti_(0.48)O_3压电陶瓷性能的研究  

Properties of Pb(Mn_(1/3)Sb_(2/3))_(0.05)Zr_(0.47)Ti_(0.48)O_3 Ceramics Modified by MnO_2 and Nb_2O_5

作　　者：孙清池[1] 陆翠敏[1] 徐明霞[1] 

机构地区：[1]天津大学,天津300072

出　　处：《稀有金属材料与工程》2006年第7期1101-1104,共4页Rare Metal Materials and Engineering

基　　金：国家自然基金委重点基金项目(10232030);天津大学先进陶瓷与加工技术教育部重点实验室资助项目(x06050)

摘　　要：探讨了MnO2和Nb2O5掺杂对Pb(Mn1/3Sb2/3)0.05Zr0.47Ti0.48O3(PMSZT)材料相组成、显微结构、电性能及温度稳定性的影响。结果发现:合成温度900℃,可以得到钙钛矿结构;随着掺杂量的增大,四方相的含量减少,准同型相界向三方相移动;当MnO2过量0.1%,Nb2O5掺杂0.05%(均为质量分数)时,ε3T3/ε0,d33和Kp达到最佳值;随着MnO2和Nb2O5掺杂量增加,Qm值下降,谐振频率变化率随温度变化由正到负。The Effects of MnO2 and Nb2O5 adding on the crystallographic phase, microstructure, electric-properties and temperature stability of Pb（Mn1/3Sb2/3）0.05Zr0.47Ti0.48O3（ PMSZT）materials have been studied. The results showed that the pure perovskitic structure was obtained at calcination of 900℃. With the adding increasing, the amount of rhombohedral phases was increasing, and the MPB was correspondingly shifted to a rhombohedral phase. The ε33^T/ε0, d33 and Kp of the samples approached the maximum value as MnO2 of 0. 1wt% and Nb2O5 of 0.05wt% were doped. The Qm value decreased and the variation of resonant frequency changed from positive to negative with the increasing of MnO2 and Nb2O5 adding and temperature.

关 键 词：PMSZT 相组成 显微结构 电性能 温度稳定性 

分 类 号：TM282[一般工业技术—材料科学与工程]