Pal, M and Brahma, P and Chakravorty, D and Bhattacharyya, D and Maiti, Himadri Sekhar (1997) Preparation of nanocrystalline barium hexaferrite in a glass medium. Nanostructured Materials , 8 (6). pp. 731-738. ISSN 0965-9773

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Barium hexaferrite phase of composition BaO-6Fe(2)O(3) of dimensions in the range 8.2 to 17.6 nm have been grown within a glass medium by subjecting the latter to a suitable heat treatment. Magnetization measurements on the resultant glass-ceramic have been carried our at temperatures varying from 20 to 300 K. The coercive field H-c is found to be much smaller than that of bulk hexaferrite. The value of H-c increases as the temperature is reduced. Also, H-c shows an increase with the increase of hexaferrite particle size. It appears that the effective anisotropy constant plays an important role in determining this behavior. (C) 1997 Acta Metallurgica Inc.

Item Type: Article
Subjects: Glass
Depositing User: Bidhan Chaudhuri
Date Deposited: 19 Jul 2012 07:19
Last Modified: 17 Sep 2015 06:49

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