Structure and magnetic properties of nanoparticles of barium ferrite synthesized using microemulsion processing

Nanoparticles of barium ferrite (BaFe12O19) were synthesized using a novel method called microemulsion processing. In this process, the aqueous cores (typically 5–25 nm in size) of water—cetyltrimethylammonium bromide—n-butanol—octane microemulsions were used as constrained microreactors for the co-precipitation of precursor carbonates (typically 5–15 nm in size). The carbonates thus formed were separated, dried and calcined to form...