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Enhanced dielectric breakdown strength and ultra-fast discharge performance of novel SrTiO3 based ceramics system

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dc.creator Jan, Abullah
dc.creator Liu, Hanxing
dc.creator Hao, Hua
dc.creator Yao, Zhonghua
dc.creator Marwa, Emanuel
dc.creator Wengao, Pan
dc.creator Atta, Ullah
dc.creator Abdul, Manan
dc.creator Amjad, Ullah
dc.creator Minghe, Cao
dc.creator Arbab, Safeer Ahmad
dc.date 2020-09-07T10:38:22Z
dc.date 2020-09-07T10:38:22Z
dc.date 2020
dc.date.accessioned 2022-10-20T13:09:18Z
dc.date.available 2022-10-20T13:09:18Z
dc.identifier Jan, A., Liu, H., Hao, H., Yao, Z., Emmanuel, M., Pan, W., ... & Ahmad, A. S. (2020). Enhanced dielectric breakdown strength and ultra-fast discharge performance of novel SrTiO3 based ceramics system. Journal of Alloys and Compounds, 154611.
dc.identifier DOI: 10.1016/j.jallcom.2020.154611
dc.identifier http://hdl.handle.net/20.500.12661/2478
dc.identifier.uri http://hdl.handle.net/20.500.12661/2478
dc.description Abstract. The full-text article is available at https://doi.org/10.1016/j.jallcom.2020.154611
dc.description The ceramics (1−x)SrTiO3-x (0.93Bi0.5Na0.5TiO3-0.07Ba0.94Sm0.04Zr0.02Ti0.98O3) abbreviated as ((1−x) ST -x (BNT-BSmZT)) (x = 0, 0.1, 0.2, 0.3) were synthesized via solid-state sintering route. The phase structure, microstructure, electrical properties and energy storage performances of the outlined compositions were investigated using X-ray diffraction, electron microscopy, and dielectric measurement techniques. The X-ray diffraction results reveal structural phase transformation from a perfect cubic structure to a rhombohedral structure as the x value increased from 0 to 0.3. The submicron grain size of ∼0.71 μm was obtained for x = 0.1. The rest of the parameters such as breakdown strength (BDS), energy storage performance, charge-discharge efficiency (η), discharging time, dielectric loss and electrical conductivity were observed to be affected by the homogeneous, compact microstructure and grain size. Herein we report an innovative ST-based lead free ceramics capacitor with the highest breakdown strength (BDS) of 420 kV/cm, an impressive recoverable energy density (Wrec) of 1.93 J/cm3, simultaneously with high efficiency (η) of 80.0%, moreover, low dielectric loss, low electrical conductivity ∼4.7 × 10−8 S/m at 100 °C and fast discharge time (∼0.18 μs) in x = 0.1. Our findings in this work suggest that the obtained ceramics system might be a promising candidate for pulsed power technology.
dc.language en
dc.publisher Elsevier
dc.subject Ceramics capacitor
dc.subject Breakdown strength
dc.subject Grain-size
dc.subject Microstructure
dc.subject Energy storage
dc.subject Electrical properties
dc.subject X-ray diffraction
dc.subject Ceramics system
dc.title Enhanced dielectric breakdown strength and ultra-fast discharge performance of novel SrTiO3 based ceramics system
dc.title Journal of Alloys and Compounds
dc.type Article


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