Pb0.94La0.04[(Zr0.70Sn0.30)0.90Ti0.10]O3 antiferroelectric bulk ceramics for pulsed capacitors with high energy and power density
Pb0.94La0.04[(Zr0.70Sn0.30)0.90Ti0.10]O3 antiferroelectric bulk ceramics for pulsed capacitors with high energy and power density
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DOI：
10.1063/1.4979833
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发表时间：
2017-04
影响因子：
4
通讯作者：
Ran Xu;Borui Li;Jingjing Tian;Zhuo Xu;Yujun Feng;Xiaoyong Wei;Dong Huang;Lanjun Yang
中科院分区：
文献类型：
--
作者：
Ran Xu;Borui Li;Jingjing Tian;Zhuo Xu;Yujun Feng;Xiaoyong Wei;Dong Huang;Lanjun Yang
采用固相反应法制备了具有良好储能和释能性能的Pb0.94La0.04[(Zr0.70Sn0.30)0.90Ti0.10]O3反铁电(AFE)块体陶瓷。该陶瓷材料在104kV/cm以下表现出较高的可释放能量密度为1.39J/cm~3，效率为92%，以及良好的温度稳定性。测试了快速放电电流，获得了高达820A/cm2的大电流密度。AFE陶瓷的非线性介电行为导致了其放电周期的变化。由于低的剩余极化，储存的电荷被完全释放，在400 ns内实际释放的能量密度约为1.0J/cm~3。在快速放电过程中，无负载电阻时的峰值功率密度为6.4×109W/kg，204.7Ω负载电阻时的平均功率密度为3.16×108W/kg。良好的储能和释能性能表明，所制得的反铁电体陶瓷在亚微秒级陶瓷领域具有广阔的应用前景。
Pb0.94La0.04[(Zr0.70Sn0.30)0.90Ti0.10]O3 antiferroelectric (AFE) bulk ceramics with both excellent energy storage and release properties were fabricated via the solid-state reaction method. The ceramics exhibited a high releasable energy density of 1.39 J/cm3, high efficiency of 92%, and good temperature stability under 104 kV/cm. Fast discharge current was measured, and a large current density up to 820 A/cm2 was achieved. The nonlinear dielectric behavior resulted in the variation of the discharge period of AFE ceramics. The stored charge was released completely due to the low remanent polarization, and the actually released energy density was about 1.0 J/cm3 in 400 ns. A high peak power density of 6.4 × 109 W/kg without a load resistor and an average power density of 3.16 × 108 W/kg with a 204.7 Ω load resistor were achieved in the rapid discharge process. The excellent energy storage and release properties indicate that the obtained antiferroelectric bulk ceramics are very promising for submicrosecond...