Piezoelectric Properties and Microstructural Analysis of the Pseudo-Quaternary Solid Solutions Pb(Mg1/3Nb2/3)O3-Pb(Co1/3Nb2/3)O3-PbTiO3-PbZrO3

Sixth IEEE International Symposium on Applications of Ferroelectrics Pub Date : 1986-06-08 DOI:10.1109/ISAF.1986.201173

Moonho Lee, K. H. Kim, C. K. Yang

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引用次数: 1

Abstract

The new piezoelectric ceramic materials of Pb (Mg 1 1 3 Nb 2 / 3 )Os-Pb( CO I /3N b2 / 3 )Os-PbTi03-PbZr03 (PMNPCN-F'T-PZ) with compositions close to the morphotropic phase boundary(MPB) were studied. The piezo electric properties and microstructures of the system x(O.75PMN-O.25PCN)-ylT-O.l25PZ were investigated. 0.5625 and 0.31253(0.5. by the conventional mixed-oxide technique, calcined at 800°C for 2 hrs and sintered at 1200'C for 1 hr. Substituting PCN for PMN partially, the planar coupling factor increased. The nearly zero aging rate of resonant frequency at room temperature was found at the composition of x=y=O.4375. Two phase mixture of a perovskite solid solution and minor quantity of a pyrochlore Pb3Nb9013 phase formed in this system, and it gives rise to the zoning structure. pyrochlore with a size of 0.5-1.2 m. From the results of XRD and piezoelectric properties, it is supposed that the composition of x=0.5312 5, y=0.34375 corresponds to MPB between tetragonal and pseudocubic ferroelectric perovskite. The composition range examined are 0.375

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伪四元固溶体Pb(Mg1/3Nb2/3)O3-Pb(Co1/3Nb2/3)O3-PbTiO3-PbZrO3的压电性能及微观结构分析

研究了成分接近形态取向相边界(MPB)的新型压电陶瓷材料Pb(Mg 1 1 3 Nb 2 /3)Os-Pb(CO 1 /3N b2 /3)Os-PbTi03-PbZr03 (PMNPCN-F'T-PZ)。研究了x(0.75 pmn - 0.25 pcn)-ylT-O体系的压电性能和微观结构。对l25PZ进行了调查。0.5625和0.31253(0.5。采用常规混合氧化物技术，在800℃下煅烧2小时，在1200℃下烧结1小时。将PCN部分取代PMN后，平面耦合系数增大。当x=y= 0.4375时，室温下谐振频率的老化率接近于零。该体系形成了钙钛矿固溶体和少量焦绿石Pb3Nb9013相的两相混合物，形成了分带结构。焦绿石，粒径0.5-1.2 m。从XRD和压电性能的结果可以推测，x=0.5312 5, y=0.34375的成分对应于四边形和拟晶型铁电钙钛矿之间的MPB。检测的成分范围为0.375

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Sixth IEEE International Symposium on Applications of Ferroelectrics

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