物理学报2011，Vol.60Issue(10)：662-667,6.
静水压下锆锡钛酸铅铁电陶瓷相变和介电性能研究
Phase transformation and dielectric properties of lead zirconate stannate titanate ferroelectric ceramic under hydraulic compression
摘要
Abstract
Nb-doped lead zirconate stannate titanate ferroelectric ceramic with composition Pb0.99Nb0.02[（Zr0.90Sn0.10）0.96Ti0.04]0.98O3（PZST 90/10-4-2Nb） is studied in a hydraulic pressure range of 0—300 MPa by released charge and dielectric measurements.Pressure-induced low temperature phase transition from ferroelectric rhombohedral（FR（LT）） structure to antiferroelectric orthorhombic（AO） strueture is investigated.Unpoled,poled and pressure-depolarized PZST 90/10-4-2Nb ferroelectric ceramics are used.The released charge quantity is 29.3 μC/cm2 and the threshold pressure is 140 MPa during the phase transformation from FR（LT） structure to AO strueture.Dielectric properties show that the threshold pressure of the phase transformation from FR（LT） structure to AO structure is 136 MPa for poled ceramic and 104 MPa for unpoled ceramic.Obvious characteristic of phase transformation is not observed in pressure-depolarized ceramic.关键词
静水压/铁电陶瓷/相变/介电Key words
hydraulic/ferroelectric ceramic/phase transformation/dielectric分类
化学化工引用本文复制引用
蒋冬冬,谷岩,冯玉军,杜金梅..静水压下锆锡钛酸铅铁电陶瓷相变和介电性能研究[J].物理学报,2011,60(10):662-667,6.基金项目
中国工程物理研究院“双百人才工程”人选自选课题 （）
国家自然科学基金 （）
国家重点基础研究发展计划（批准号：2009CB623306）资助的课题 （）
