Study on Dielectric Properties of (Ba_0.90Sr_0.10) TiO₃ Based Ceramic Capacitors for Energy Storage Applications

Abstract:

The development of energy storage capacitors with high dielectric constant and good stability has been focused on by researchers due to many issues regarding environmental protection and energy conservation. Barium-Strontium Titanate based ceramic capacitors are widely used for energy storage applications due to their attractive dielectric properties. In this study, (Ba_0.90Sr_0.10) TiO₃ based capacitors were produced, and the influence of additives i.e. CaZrO₃, MnCO₃, CeO₂, ZnO, and Nb₂O₅ was investigated. The parameters of all the fabrication processes have been optimized to get defect-free green and sintered samples. The defect-free green parts were sintered at 1380°C for 2 h and perovskite structure was confirmed by XRD profiles. The grain size was refined from 25 μm to 08 μm analyzed by scanning electron microscopy (SEM). The capacitor was tested at 40 KV successfully and capacitance of 2.0 nF was measured at this high voltage. The results showed that high-voltage capacitors can be fabricated with enhanced energy storage.

• Periodical: Key Engineering Materials (Volume 992)
• Pages: 3-12
• DOI: https://doi.org/10.4028/p-K5dTUE
• Online since: October 2024
• Authors: Muhammad Ali*, Muhammad Abid Amin, Azaz Nigah
• Keywords: Barium Titanate, Breakdown Strength, Calcination, Ceramic Capacitors, Dielectric Properties, Energy Storage, Strontium Titatnate

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