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A low temperature path to the preparation of ultrafine ferrites

Ravindranathan, P and Patil, Kashinath C (1987) A low temperature path to the preparation of ultrafine ferrites. In: American Ceramic Society Bulletin, 66 (4). pp. 688-692.

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Ultrafine ferrites, {MFe_2O_4} where M = Mg, Mn, Fe, Co, Ni, and Zn, were prepd. by the combustion/decompn. in a melt of solid soln. precursors, hydrazinium metal hydrazinecarboxylate hydrates, {N_2H_5M_1}/{3Fe_2}/{3(N_2H_3COO)}3.{H_2O} (M = Mg, Mn, Fe, Co, Ni, and Zn). The precursors decomp. at low temps. (75-200°) with the evolution of large amts. of gases. Ultrafine ferrites having particle sizes 6-22 nm and surface area 100-140 {m^2}/g were obtained and characterized by x-ray powder diffraction, Moessbauer spectra, particle size anal., and surface area measurements.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to the American Ceramic Society.
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Depositing User: Kiran Savanur
Date Deposited: 08 May 2008
Last Modified: 27 Aug 2008 13:21
URI: http://eprints.iisc.ac.in/id/eprint/13867

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