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Title: Ultrafine BaFe12O19 powder synthesised by mechanochemical processing
Authors: Ding, J. 
Tsuzuki, T.
McCormick, P.G.
Keywords: Coercivity
Ferrites - hexagonal
Mössbauer spectroscopy - ferrites
Issue Date: Jan-1998
Citation: Ding, J.,Tsuzuki, T.,McCormick, P.G. (1998-01). Ultrafine BaFe12O19 powder synthesised by mechanochemical processing. Journal of Magnetism and Magnetic Materials 177-181 (PART 2) : 931-932. ScholarBank@NUS Repository.
Abstract: Ultrafine BaFe12O19 powder has been synthesised by a novel mechanochemical preparation method. Mechanical milling of 1.2BaCl2 + 12FeCl3 + 38.4NaOH led to a mixture of NaCl and iron and barium hydroxide or oxide-hydroxide. The formation of BaFe12O19 required annealing at 800°C in air. A significant reduction of particle size was achieved by dilution with NaCl. High coercivity values above 5 kOe were measured for BaFe12O19 platelets of 20-100 nm in diameter and 10-20 nm thick. © 1998 Elsevier Science B.V. All rights reserved.
Source Title: Journal of Magnetism and Magnetic Materials
ISSN: 03048853
Appears in Collections:Staff Publications

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