STRUCTURAL, MICROSTRUCTURAL AND DIELECTRIC PROPERTIES OF TRI-LAYERED AURIVILLIUS-TYPE STRUCTURE Bi4Ti3O_(12) FERROELECTRIC CERAMICS

摘要

In this work, the physical properties of rare-earth modified Bi4Ti3O_(12) (BT) system have been investigated. High-density ceramic samples were obtained from the solid-state reaction method. The structural and microstructural properties were studied from the x-ray and scanning electron microscopy techniques, respectively. The dielectric response has been analyzed in a wide temperature and frequency range and the influence of rare-earth concentration on the studied properties has been taken into account.