A MOSSBAUER-EFFECT STUDY OF BALL-MILLED STRONTIUM FERRITE

Authors
WU E CAMPBELL SJ KACZMAREK WA
Citation
E. Wu et al., A MOSSBAUER-EFFECT STUDY OF BALL-MILLED STRONTIUM FERRITE, Journal of magnetism and magnetic materials, 177, 1998, pp. 255-256
Citations number
7
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
177
Year of publication
1998
Part
1
Pages
255 - 256
Database
ISI
SICI code
0304-8853(1998)177:<255:AMSOBS>2.0.ZU;2-E
Abstract
The effects of milling SrFe12O19 in air and vacuum for 800 h have been investigated by X-ray diffraction and Mossbauer effect spectroscopy m easurements. Different levels of structural disorder along with partia l decomposition of SrFe12O19 to nanocrystalline grains of haematite, a lpha-Fe2O3, and magnetite, Fe3O4, are obtained for the air and vacuum milling. Superparamagnetic relaxation effects due to the fine particle s produced on milling are observed for a significant fraction (similar to 10% air milled, similar to 30% vacuum milled) of the milled sample s. (C) 1998 Elsevier Science B.V. All rights reserved.