Abstract

Bi_{4 – x} La _x Ti₃O₁₂ (BiLT, x = 0.60–1.00) ceramics have been successfully synthesized by the alternative mechanochemical method and investigated their structural, microstructure, dielectric, and ferroelectric properties. Based on thermal stability of synthesized samples, compounds were calcined at 750 °C. No secondary phase is observed in the powder X-ray diffraction patterns. Plate-like shape with enhanced density is seen in the scanning electron microscope micrographs. EDAX pattern confirmed the chemical composition of samples. Prepared ceramic sample had relatively appreciable remanent polarization value (≈14.5 µC/cm²) at room temperature. Microstructure significantly influenced the dielectric and ferroelectric properties of the modified BiT ceramics. Synthesized compounds explored desirable electronic properties for innovative ferroelectric-based device applications.

摘要

Bi _{4 – x} La _x Ti ₃ O ₁₂ (BiLT, x  = 0.60–1.00 ) 陶瓷已通过替代机械化学方法成功合成，并研究了它们的结构、微观结构、介电和铁电性能。基于合成样品的热稳定性，化合物在 750 °C 下煅烧。在粉末 X 射线衍射图中没有观察到第二相。在扫描电子显微镜显微照片中可以看到密度增加的板状形状。EDAX 图案证实了样品的化学成分。制备的陶瓷样品具有相对可观的剩余极化值 (≈14.5 µC/cm ² ） 在室温下。微观结构显着影响了改性 BiT 陶瓷的介电和铁电性能。合成的化合物探索了基于铁电的创新器件应用所需的电子特性。