Effect of Sn Content on Structure and Properties Near the Morphotropic Phase Boundary in a PbSnO3-PbZrO3-PbTiO3 Ternary System
Effect of Sn Content on Structure and Properties Near the Morphotropic Phase Boundary in a PbSnO3-PbZrO3-PbTiO3 Ternary System
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DOI：
10.1007/s11664-014-3199-x
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发表时间：
2014-05
影响因子：
2.1
通讯作者：
Zhuo Xing;Li Jin;Yujun Feng;Xiaoyong Wei
中科院分区：
文献类型：
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作者：
Zhuo Xing;Li Jin;Yujun Feng;Xiaoyong Wei
采用传统固相反应法制备了具有纯钙钛矿结构的PbSnO3-PbZrO3-PbTiO3（PZST）三元体系的压电陶瓷，其组成靠近致形相边界（MPB）。研究了Sn含量对Pb(ZrxSnyTi1−x−y) o3陶瓷介电、压电和铁电性能的影响。实验结果表明，随着Ti = 0.48线Sn含量的增加，最佳烧结温度、四边形和居里温度（TC）均单调降低。在某些低锡成分中，极化电场磁滞环表现出钉钉效应。研究了钉钉效应的频率依赖性，并进行了电流-电场曲线分析。在MPB附近的PZST组合物在实际应用中具有很好的优势。
Piezoelectric ceramics in the PbSnO3-PbZrO3-PbTiO3(PZST) ternary system with pure perovskite structure were synthesized by a conventional solid state reaction method with the compositions near the morphotropic phase boundary (MPB). The influences of Sn content on dielectric, piezoelectric, and ferroelectric properties of Pb(ZrxSnyTi1−x−y)O3ceramics were investigated. The experimental results showed that, with increasing the Sn content along the Ti = 0.48 line, the optimized sintering temperature, tetragonality, and Curie temperature (TC) decreased monotonically. The polarization–electric field hysteresis loops show a pinning effect in some low Sn compositions. Frequency dependence of the pinning effect was studied accompanied with current–electric field curve analysis. The PZST compositions near MPB show promising advantages for practical applications.