Breakdown Strength Study of Barium Titanate Ceramics for Power Electronics Applications

The present study is related to the compactness issues of power electronic modules and the integration of functions within their assemblies. It focuses on the dielectric properties of titanate-based ceramic material shaped by Spark Plasma Sintering. With such a process, barium titanate dense ceramic demonstrates high relative permittivity with low dielectric losses, presenting a particular interest for being an embedded decoupling capacitor. The aim of this work is to characterize the influence of different parameters, such as ceramic pellets’ thickness, densification, and permittivity on their breakdown strength under DC voltage stress.