Preparation of Nanosized Barium Ferrite Spinel by a Sonochemical Method
Nanosized barium ferrite spinel particles were prepared with the aid of ultrasound radiation by a precursor approach. A precursor was got by sonicating an aqueous solution of BaCl2, Fe (NO3)3·9H2O and urea firstly. Nanosized BaFe2O4 particles with a size of ca.40nm were prepared after the precursor was heated at 950 °C for 15 h. The nanosized barium ferrite particles and the precursor were characterized by powder X-ray diffraction, scanning electron microscopy, FT-IR and differential scanning calorimetry.
Wei Pan and Jianghong Gong
B. Liu et al., "Preparation of Nanosized Barium Ferrite Spinel by a Sonochemical Method", Key Engineering Materials, Vols. 368-372, pp. 607-609, 2008