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

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dc.creatorJan, Abullah
dc.creatorLiu, Hanxing
dc.creatorHao, Hua
dc.creatorYao, Zhonghua
dc.creatorMarwa, Emanuel
dc.creatorWengao, Pan
dc.creatorAtta, Ullah
dc.creatorAbdul, Manan
dc.creatorAmjad, Ullah
dc.creatorMinghe, Cao
dc.creatorArbab, Safeer Ahmad
dc.date2020-09-07T10:38:22Z
dc.date2020-09-07T10:38:22Z
dc.date2020
dc.date.accessioned2022-10-20T13:09:18Z
dc.date.available2022-10-20T13:09:18Z
dc.descriptionAbstract. The full-text article is available at https://doi.org/10.1016/j.jallcom.2020.154611
dc.descriptionThe 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.identifierJan, 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.identifierDOI: 10.1016/j.jallcom.2020.154611
dc.identifierhttp://hdl.handle.net/20.500.12661/2478
dc.identifier.urihttp://hdl.handle.net/20.500.12661/2478
dc.languageen
dc.publisherElsevier
dc.subjectCeramics capacitor
dc.subjectBreakdown strength
dc.subjectGrain-size
dc.subjectMicrostructure
dc.subjectEnergy storage
dc.subjectElectrical properties
dc.subjectX-ray diffraction
dc.subjectCeramics system
dc.titleEnhanced dielectric breakdown strength and ultra-fast discharge performance of novel SrTiO3 based ceramics system
dc.titleJournal of Alloys and Compounds
dc.typeArticle

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