ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 25, Number 5
JKCSEZ 25(5)
October 20, 1981 

The effects of Fe2O3 aggregation on the sintering of Ba-ferrite (BaFe12O19) were studied. BaCO3-Fe2O3 mixtures were prepared by partial precipitation mixing and ball-mill mixing method using two different Fe2O3 powders. Techniques employed were TG, XRD and SEM. X-ray diffraction analysis showed that the over all reaction basically consists of the two consecutive reaction; BaCO3 + 6Fe2O3 → BaFe2O3 + 5Fe2O3 + CO2↑ BaFe2O4 + 5Fe2O3 → BaFe12O19 It is also shown that the aggregation state of Fe2O3 raw materials, as well as the mixing method, has a remarkable effect on solid state reaction between BaCO3 and Fe2O3.