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.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
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)
关键词
PMSZT
相组成
显微结构
电性能
温度稳定性
PMSZT
crystallographic phase
microstructure
electric-properties
temperature stability
