Electric field assisted spark plasma sintering of ABO3 perovskites: Crystal structure, dielectric behavior and future challenges

Plenty of traditional and novel sintering techniques have been utilized to enhance the performance of perovskite materials. Among several sintering methods, electric field-assisted spark plasma sintering (SPS) is a modern category and has been effective for the excellent functionalities of perovskite compounds. The state-of-the-art SPS systems, perovskite materials development, and corresponding design are focused. This article will highlight the parameters of this technique, the advanced procedure of sintering, and their respective effects on the densification and dielectric performance of ABO₃ perovskite materials. No such work has been reported to relate the crystalline nature of the various functional perovskites with the spark plasma sintering procedures. This review illustrates a good compilation of recently reported few perovskite materials processed by spark plasma sintering and relationships between thermal effects, density, and dielectric performance. The enhanced density, high dielectric permittivity, and low dielectric loss were achieved due to SPS.