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http://repository.kln.ac.lk/handle/123456789/4093
Title: | Surfactant assisted ball-milling of barium ferrite |
Authors: | Jayasuriya, K.D. Wu, E. Kaczmarek, W.A. Campbell, S.J. |
Issue Date: | 1994 |
Publisher: | IEEE Transactions on Magnetics |
Abstract: | The effects of wet-milling barium ferrite in the presence of cationic or anionic surface active substances have been investigated by X-ray diffraction and Mossbauer spectroscopy measurements. Evidence for superparamagnetic relaxation of fine particles, both in the surfactant assisted ball-milled samples and in samples dry-milled in air is obtained from the room temperature and 4.2 K Mossbauer spectra. The similarity between samples milled at pH 3 with the cationic or anionic surfactants is due to electrostatic interactions of the surfactants' hydrocarbon groups with the positively charged barium ferrite surface |
URI: | http://repository.kln.ac.lk/handle/123456789/4093 |
ISSN: | 0018-9464 |
Appears in Collections: | Physics |
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