多层电容器用0.6PMN-0.4PZN弛豫铁电陶瓷的大介电响应

IF 1.3 4区物理与天体物理 Q4 PHYSICS, CONDENSED MATTER

Ferroelectrics Letters Section Pub Date : 2019-12-03 DOI:10.1080/07315171.2019.1570767

M. V. Takarkhede, S. Band

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引用次数: 0

摘要

摘要:在烧结温度1000 ~ 1170℃范围内，煅烧温度分别为800℃和850℃，采用两段柱状体路线合成了0.6PMN-0.4PZN固溶体陶瓷。XRD和SEM表征表明，陶瓷在1050 ~ 1100℃之间形成单一钙钛矿相。所研究的组合物的最高密度可达94%。在1000 ~ 1100℃较低的烧结温度下获得了优异的介电性能。在1000°C ~ 1100°C之间烧结的陶瓷在1 kHz时εmax≈14000和24000,Tc = 51 ~ 48°C，接近室温。材料的介电性能与结构、微观结构和密度之间具有良好的相关性。在Z5U电容器规格范围内的TCC值反映了组成为0.6PMN-0.4PZN的陶瓷是MLC的潜在候选者。

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Large dielectric response of 0.6PMN-0.4PZN relaxor ferroelectric ceramic for multilayer capacitors

Abstract 0.6PMN-0.4PZN solid solution ceramic was synthesized employing two stage columbite route using sintering temperature range 1000–1170 °C for calcination temperature 800 °C and 850 °C, respectively. XRD and SEM characterization revealed single perovskite phase formation in ceramic between 1050 °C to 1100 °C. The highest density upto 94% was achieved for the composition under study. The excellent dielectric properties were obtained at lower sintering temperature 1000–1100 °C. Ceramics sintered between 1000 °C–1100 °C exhibit εmax≈14000 and 24000 at 1 kHz with Tc = 51–48 °C which is near room temperature. A good correlation was obtained between dielectric properties with structure, microstructure and density. The TCC values within the limit of Z5U capacitor specification reflect ceramics of composition 0.6PMN-0.4PZN is a potential candidate for MLC.

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来源期刊

Ferroelectrics Letters Section 物理-物理：凝聚态物理

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

4.8 months

期刊介绍： Ferroelectrics Letters is a separately published section of the international journal Ferroelectrics. Both sections publish theoretical, experimental and applied papers on ferroelectrics and related materials, including ferroelastics, ferroelectric ferromagnetics, electrooptics, piezoelectrics, pyroelectrics, nonlinear dielectrics, polymers and liquid crystals. Ferroelectrics Letters permits the rapid publication of important, quality, short original papers on the theory, synthesis, properties and applications of ferroelectrics and related materials.