Abstract
Gel fibres of barium M ferrite, BaFe12O19, were blow spun from an aqueous inorganic sol and calcined at temperatures up to 1200°C. The ceramic fibres were shown by X-ray diffraction to be single phase crystalline M ferrite at 1000°C, and surface area and porosity measurements indicated an unusually high degree of sintering at this temperature. The fibres also demonstrated a favourable grain structure of less than 0.1 μm at this temperature and maintained a small grain size of less than 4 μm even up to 1200°C, an important factor in the magnetic properties of this material.
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PULLAR, R.C., TAYLOR, M.D. & BHATTACHARYA, A.K. Novel aqueous sol–gel preparation and characterization of barium M ferrite, BaFe12O19 fibres. Journal of Materials Science 32, 349–352 (1997). https://doi.org/10.1023/A:1018593014378
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DOI: https://doi.org/10.1023/A:1018593014378