A MOSSBAUER STUDY OF BALL-MILLED CO-FE-SI-B .2. WITH SURFACTANTS

Authors
JAYASURIYA KD CAMPBELL SJ CALKA A JING J
Citation
Kd. Jayasuriya et al., A MOSSBAUER STUDY OF BALL-MILLED CO-FE-SI-B .2. WITH SURFACTANTS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 76(1-4), 1993, pp. 85-88
Citations number
6
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
76
Issue
1-4
Year of publication
1993
Pages
85 - 88
Database
ISI
SICI code
0168-583X(1993)76:1-4<85:AMSOBC>2.0.ZU;2-G
Abstract
The use of a range of organic surface active substances in the ball mi lling of Co-Fe-Si-B has been studied by X-ray diffraction and Mossbaue r effect measurements. Effects characteristic of superparamagnetic rel axation of the magnetic moments are observed in the Mossbauer spectra of samples milled with either an anionic or a cationic surfactant. Thi s behaviour is linked with the decreased particle size and high shape homogeneity of surfactant-aided milled samples compared with the amorp hous powders resulting from standard dry milling. Impurity iron-oxide phases are also found to occur in samples milled in the presence of su rfactants.