A Mössbauer study of ball-milled Co?Fe?Si?B: II: with surfactants

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Title:	A Mössbauer study of ball-milled Co?Fe?Si?B: II: with surfactants
Authors:	Jayasuriya, K.D. Campbell, S.J. Calka, A. Jing, J.
Keywords:	X-rays Measure theory
Issue Date:	1993
Publisher:	Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Abstract:	The use of a range of organic surface active substances in the ball milling of Co?Fe?Si?B has been studied by X-ray diffraction and M�ssbauer effect measurements. Effects characteristic of superparamagnetic relaxation of the magnetic moments are observed in the M�ssbauer spectra of samples milled with either an anionic or a cationic surfactant. This behaviour is linked with the decreased particle size and high shape homogeneity of surfactant-aided milled samples compared with the amorphous powders resulting from standard dry milling. Impurity iron-oxide phases are also found to occur in samples milled in the presence of surfactants.
URI:	http://repository.kln.ac.lk/handle/123456789/4088
ISSN:	0168-583X
Appears in Collections:	Physics

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