High recoverable energy density over a wide temperature range in Sr modified (Pb,La)(Zr,Sn,Ti)O3 antiferroelectric ceramics with an orthorhombic phase
High recoverable energy density over a wide temperature range in Sr modified (Pb,La)(Zr,Sn,Ti)O3 antiferroelectric ceramics with an orthorhombic phase
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Sr 改性斜方相 (Pb,La)(Zr,Sn,Ti)O-3 反铁电陶瓷在宽温度范围内具有高可恢复能量密度
DOI：
10.1063/1.4973425
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发表时间：
2016-12
影响因子：
4
通讯作者：
Yunbin He
中科院分区：
文献类型：
--
作者：
Qingfeng Zhang;Tong Huifen;Chen Jian;Lu Yinmei;Yang Tongqing;Yao Xi;Yunbin He
通过在（Pb，Sr，La）（Zr，Sn，Ti）O3（PSLZST）陶瓷中引入Sr ~（2+），获得了高的可恢复能量密度（Ure）。所有Sr 2+改性陶瓷表现出正交反铁电（AFE）的特性，并具有更高的铁电-AFE相切换电场（EA，与尿素成比例）比的基础组合物与tetraxylAFE相。通过适当调节Sr ~（2+）的含量，PSLZST陶瓷的Ure得到了很大的提高。这归因于Sr 2+以较小的离子半径取代Pb 2+，这降低了公差因子，导致AFE相稳定性增强，从而增加了EA。最好的能量存储性能实现在PSLZST陶瓷与Sr 2+含量为0.015。它具有最大室温Ure为5.56 J/cm 3，迄今为止通过常规烧结技术制备的介电陶瓷所达到的最高值，并且在…
Via incorporation of Sr2+ into (Pb,La)(Zr,Sn,Ti)O3, high recoverable energy density (Ure) is achieved in (Pb,Sr,La)(Zr,Sn,Ti)O3 (PSLZST) ceramics. All Sr2+ modified ceramics exhibit orthorhombic antiferroelectric (AFE) characteristics, and have higher ferroelectric-AFE phase switching electric field (EA, proportional to Ure) than the base composition with a tetragonal AFE phase. By properly adjusting the Sr2+ content, the Ure of PSLZST ceramics is greatly improved. This is attributed to the substitution of Pb2+ by Sr2+ with a smaller ion radius, which decreases the tolerance factor leading to enhanced AFE phase stability and thus increased EA. The best energy storage properties are achieved in the PSLZST ceramic with a Sr2+ content of 0.015. It exhibits a maximum room-temperature Ure of 5.56 J/cm3, the highest value achieved so far for dielectric ceramics prepared by a conventional sintering technique, and very small energy density variation ( 4.9 J/cm3) over ...
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影响因子：
3.2
作者：
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通讯作者：
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影响因子：
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影响因子：
16.6
作者：
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