Abstract
A SrO–BaO–Nb2O6–B2O3 glass–ceramic was prepared by controlled-crystallization method, and the phase evolution and dielectric properties were investigated. The correlation between the dielectric breakdown performance and the activation energy was studied by the measurements of the dielectric breakdown strength and impedance spectroscopy as a function of crystallization temperature in a SrO–BaO–Nb2O6–B2O3 glass–ceramics. It was found that dielectric breakdown strength strongly depended on the interface polarization. The crystallization temperature dependence of breakdown strength was attributed to the variation in interfacial polarization based on the results of impedance analysis. The prepared glass–ceramic crystallized at 800°C exhibited a breakdown strength of 1050kV/cm, a dielectric constant of 117 and a high energy storage density of 5.71J/cm3.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
