Issue
Korean Journal of Chemical Engineering,
Vol.19, No.1, 120-125, 2002
Influence of Stoichiometry and Alkalinity on Barium Hexaferrite Formation via the Supercritical Water Crystallization Method
Fine particles of barium hexaferrite were prepared from aqueous solutions of iron nitrate, barium nitrate and potassium hydroxide by utilizing a continuous flow type supercritical water crystallization method. The influence of stoichiometry (Fe/Ba mole ratio) and alkalinity (R) on the product composition and morphology was studied under fixed temperature, pressure and residence time. Experiments were performed with varying Fe/Ba mole ratios and alkali mole ratio (R). Within mole ratio ranges of 0.5
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