Speight, R. J. (Richard J.), Wong, Alan, Ellis, P., Hyde, T., Bishop, P. T. and Smith, Mark E.. (2009) A Co-59 NMR study to observe the effects of ball milling on small ferromagnetic cobalt particles. Solid State Nuclear Magnetic Resonance, Vol.35 (No.2). pp. 67-73. ISSN 0926-2040

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Abstract

To demonstrate the potential of nuclear magnetic resonance (NMR) spectroscopy for investigating detailed structural properties in ferromagnetic materials, three different particle sized cobalt (Co) powders have been ball milled for 24 h are accurately characterised by internal-field Co-59 NMR. The Co-59 NMR spectra show distinct resonance bands corresponding to the different Co sites. face-centred-cubic (fcc), hexagonal-close-packed (hcp) and stacking faults (sfs), in Co metal powders. The hcp+fcc-->hcp phase transition encouraged by ball-milling was observed and quantitative values for each Co environment were obtained. (C) 2008 Elsevier Inc. All rights reserved.

Item Type:	Journal Article
Subjects:	Q Science > QD Chemistry Q Science > QC Physics
Divisions:	Administration > Vice Chancellor's Office Faculty of Science > Physics
Journal or Publication Title:	Solid State Nuclear Magnetic Resonance
Publisher:	Academic Press
ISSN:	0926-2040
Date:	April 2009
Volume:	Vol.35
Number:	No.2
Number of Pages:	7
Page Range:	pp. 67-73
Identification Number:	10.1016/j.ssnmr.2008.12.001
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	Engineering and Physical Sciences Research Council (EPSRC), Biotechnology and Biological Sciences Research Council (Great Britain) (BBSRC), Natural Sciences and Engineering Research Council of Canada NSERC, University of Warwick
URI:	http://wrap.warwick.ac.uk/id/eprint/28083

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