Enhancing the Dielectric Constant and Energy Storage Properties of PZT through Glass Homogenization via Aerodynamic Levitation

초록

Lead zirconate titanate (PZT) is a widely used dielectric material due to its high dielectric constant and energy storage capabilities, making it ideal for various applications in electronic devices and energy storage systems. To further improve these properties, we investigated the effect of adding Y₂O₃-Al₂O₃-SiO₂ (YAS) glass to PZT. The glass was processed using two different methods: quenched and levitated glass. Previous studies have demonstrated that incorporating glass into PZT enhances its breakdown strength and energy storage efficiency by improving the density of the ceramic film. In this study, we compared the dielectric performance of three formulations: pure PZT, PZT mixed with quenched YAS glass, and PZT mixed with aerodynamic levitated YAS glass. Our findings show that levitated glass provides superior results due to its more uniform structure, achieved through the levitation process, which avoids contamination and ensures homogeneity. This leads to enhanced interaction between the glass and PZT, resulting in improved dielectric constant and energy storage properties. In contrast, the quenched glass, while offering some improvement over pure PZT, exhibited lower performance due to the potential for residual stresses and microstructural inconsistencies formed during rapid cooling. The levitation method minimizes these issues, allowing for a more efficient glass-PZT composite. This research highlights the advantages of using levitation to homogenize glass, offering a promising new approach for optimizing the dielectric and energy storage characteristics of PZT-based materials for high-performance applications.