Combustion synthesis and characterization of Ba2NdSbO6 nanocrystals

Bulletin of Materials Science

关键词: Ceramics;    infrared spectroscopy;    surface morphology;    transmission electron microscopy.;   

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Nanocrystalline Ba2NdSbO6, a complex cubic perovskite metal oxide, powders were synthesized by a self-sustained combustion method employing citric acid. The product was characterized by X-ray diffraction, differential thermal analysis, thermogravimetric analysis, Fourier transform infrared spectroscopy, transmission electron microscopy and scanning electron microscopy. The as-prepared powders were single phase Ba2NdSbO6 and a mixture of polycrystalline spheroidal particles and single crystalline nanorods. The Ba2NdSbO6 sample sintered at 1500°C for 4 h has high density (∼ 95% of theoretical density). Sintered nanocrystalline Ba2NdSbO6 had a dielectric constant of ∼ 21; and dielectric loss = 8 × 10-3 at 5 MHz.

【 授权许可】

CC BY