材料科学与工程学报2018，Vol.36Issue(1)：99-102,116,5.DOI:10.14136/j.cnki.issn1673-2812.2018.01.021
SrCaBi4Ti5O18-BiMeO3(Me=Ga,Mn)高温无铅压电陶瓷的制备及性能
Preparation and Properties of SrCaBi4Ti5O18-BiMeO3 (Me=Ga, Mn)High-temperature Lead-free Piezoelectric Ceramics
摘要
Abstract
Bismuth layer-structured ferroelectric ceramics of (1-x) SrCaBi4Ti5O18-xBiMeO3 (SCBT-xBMe,Me=Ga,Mn;0 ≤x≤0.02) were prepared by traditional solid state reaction.The effects of BiMeO3 doping on the microstructure and electrical properties of ceramics were studied.Results indicated that all ceramics show bismuth oxide layered structure.After BiMeO3 doping,the grain size of the ceramics increased and became more uniform.Moreover,certain amount of BiMeO3 doping enhanced the electrical properties.When x=0.005 (BiGaO3) and x=0.02 (BiMnO3),the piezoelectric constant d33 reached 18pC/N and 20pC/N,respectively,together with high curie temperature (Tc =550℃) and low dielectric loss (tanδ＜ 0.15％).Moreover,the results of dielectric properties and thermal annealing behavior indicated that the SCBT-xBMe ceramics possessed high piezoelectric stability,which makes this material promising for high-temperature and high-frequency piezoelectric devices.关键词
高温压电陶瓷/铋层状/微观结构/热稳定性Key words
high temperature piezoceramics/bismuth layer-structured/microstructure/thermal stability分类
信息技术与安全科学引用本文复制引用
李程,胡杰文,王元立,李宁,郝继功..SrCaBi4Ti5O18-BiMeO3(Me=Ga,Mn)高温无铅压电陶瓷的制备及性能[J].材料科学与工程学报,2018,36(1):99-102,116,5.基金项目
国家自然科学基金资助项目(51402144,51372110),山东省高校科技计划资助项目(J14LA11),聊城大学博士启动基金资助项目(318051407),聊城大学大学生创新创业训练资助项目(CXCY2016008) （51402144,51372110）
