- Synthesis of Ultra Eine MnxZn1-xFe2O4(x = 0.69~0.74) Powder and Its Magnetic Properties
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Jae-Eun Kwak, Wan-Jae Lee
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J Korean Powder Metall Inst. 2002;9(6):449-454.
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DOI: https://doi.org/10.4150/KPMI.2002.9.6.449
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 Abstract
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- MnxZn_1-xFe_2O_4 (x=0.69~0.74) powders synthesized by the thermal decomposition of organic acid salts. The obtained powders were uniform in composition and ultra-fine particle with about 400 nm. The amount of spinel phase of these powders was about 50% in X-ray diffraction patterns. The calcination of powder was carried out at 900°C for 2 hours in air. After the powders were calcined. the mean size of powder was about 500 nm and the amount of spinel phase was increased over about 65%. The maximum amount of spinel phase was about 75% in the specimen of X=0.72. The magnetic properties of calcined Mn_0.72Zn_0.28Fe_2O_4 powders were the best among the different among the different compositions.
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