Microstructure tailoring for enhancing the energy storage performance of 0.98[0.6Ba(Zr <ce:inf loc='post'>0.2</ce:inf>Ti <ce:inf loc='post'>0.8</ce:inf>)O <ce:inf loc='post'>3</ce:inf>-0.4(Ba <ce:inf loc='post'>0.7</ce:inf>Ca <ce:inf loc='post'>0.3</ce:inf>)TiO <ce:inf loc='post'>3</ce:inf>]-0.02BiZn <ce:inf loc='post'>1/2</ce:inf>Ti <ce:inf loc='post'>1/2</ce:inf>O <ce:inf loc='post'>3</ce:inf> ceramic capacitors

A.R. Jayakrishnan; Penna Venkata Karthik Yadav; J.P.B. Silva; K.C. Sekhar

首页> 外文期刊>Journal of Science: Advanced Materials and Devices >Microstructure tailoring for enhancing the energy storage performance of 0.98[0.6Ba(Zr 0.2Ti 0.8)O 3-0.4(Ba 0.7Ca 0.3)TiO 3]-0.02BiZn 1/2Ti 1/2O 3 ceramic capacitors

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Microstructure tailoring for enhancing the energy storage performance of 0.98[0.6Ba(Zr 0.2Ti 0.8)O 3-0.4(Ba 0.7Ca 0.3)TiO 3]-0.02BiZn 1/2Ti 1/2O 3 ceramic capacitors

机译：用于提高能量存储性能的微观结构剪裁0.98 [0.6Ba（Zr 0.2 Ti 0.8 ）O 3 -0.4（BA 0.7 CE：INF PLACE =“POST”> 0.3 ）TIO 3 ] - 0.02BIZN 1/2 TI 1/2 O 3 陶瓷电容器

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In this work, we introduce a new approach to enhance the energy storage properties of 0.98[0.6Ba(Zr0.2Ti0.8)O3-0.4(Ba0.7Ca0.3)TiO3]-0.02BiZn1/2Ti1/2O3[BCZT-BZ] ceramic capacitors via tuning the microstructure through the sintering time. The x-ray diffraction (XRD) analysis confirmed the formation of BCZT-BZ solid solution without any secondary phase. It is observed that the rhombohedral and tetragonal phases co-exist in BCZT-BZ samples sintered at different time periods, except the one sintered for 11?h, where the rhombohedral and pseudocubic phases co-exist. The energy dispersive x-ray spectroscopy (EDS) revealed the presence of the elements constituting the BCZT-BZ samples. The variation of the grain size with the sintering time is explained based on the coalescence process and the Ostwald ripening mechanism. A strong correlation was observed between the ferroelectric properties and the microstructure. The sample sintered for 11?h with pseudocubic nature and small grain size shows a slimP-Eloop owing to a high recoverable energy density (2.61?J/cm3) and a high efficiency (91%) at an electric field of 150?kV/cm. The observed recoverable energy density was found 3 to 13 times higher than that reported for bulk BCZT. These findings suggest that the present BCZT-BZ ceramics are attractive materials for the energy storage capacitor applications.

机译：在这项工作中，我们引入了一种新方法来提高0.98 [0.6Ba（Zr0.2ti0.8）O3-0.4（Ba0.7ca0.3）TiO3] -0.02bizn1 / 2ti1 / 2o3 [bczt-bz的能量储存性能]陶瓷电容器通过烧结时间调谐微结构。 X射线衍射（XRD）分析证实了BCZT-BZ固溶体的形成而没有任何二相。观察到，在不同时间段的BCZT-BZ样品中共存在菱形和四方相，除了烧结11ΩH的烧结，其中菱形和伪阶段共存。能量分散X射线光谱（EDS）揭示了构成BCZT-BZ样品的元素的存在。基于聚结过程和OSTWALD成熟机制，解释具有烧结时间的晶粒尺寸的变化。在铁电性质和微观结构之间观察到强烈的相关性。具有伪结构性质和小晶粒尺寸的样品烧结11Ωh，由于高可回收的能量密度（2.61Ω·j / cm3）和150ΩkV /的电场高效率（91％）。厘米。发现观察到的可恢复能量密度比批量BCZT报道的3至13倍。这些发现表明，本发明的BCZT-BZ陶瓷是能量存储电容器应用的有吸引力的材料。

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《Journal of Science: Advanced Materials and Devices》 |2020年第1期|共6页
作者
A.R. Jayakrishnan; Penna Venkata Karthik Yadav; J.P.B. Silva; K.C. Sekhar;
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CeramicsRelaxor ferroelectricsLattice distortionGrain sizeRecoverable energy;

机译：陶瓷资料铬铁畸变性器可折诊能量;

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机译：<！[CDATA [增强的能量存储属性（1- x （0.7bi 0.5 NA <以下是： INF PLACE =“POST”> 0.5 TIO 3 -0.3bi 0.2 SR 0.7 TIO 3 ） - x Nanbo 3 无铅陶瓷]]>
4. Doping effect of SiO2/CeO2 on the dielectric, ferroelectric and piezoelectric properties of (Ba0.7Ca0.3)(Zr0.2Ti0.8)O3 ceramics [C] . Liu Wenfeng, Zhao Daqi, Li Shengtao International Conference on Electrical Insulating Materials . 2014

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5. Splice variation-specific cellular and biochemical function of the formin INF2 [D] . Ramabhadran, Vinay 2012

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机译：0.94（Bi 1/2 Na 1/2 ）TiO 3 -0.06Ba（Zr 0.02 < / inf> Ti 0.98 ）O 3 弛豫陶瓷

Microstructure tailoring for enhancing the energy storage performance of 0.98[0.6Ba(Zr 0.2Ti 0.8)O 3-0.4(Ba 0.7Ca 0.3)TiO 3]-0.02BiZn 1/2Ti 1/2O 3 ceramic capacitors

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