Preparation of bulk Nd2Fe14B/Fe3B nanocomposite magnets with high rare earth content

Zhang, W. Y., Stoica, M., Eckert, J., Peng Yu and Jiang, J. Z. (2008) Preparation of bulk Nd2Fe14B/Fe3B nanocomposite magnets with high rare earth content. Intermetallics, 16 3: 341-344. doi:10.1016/j.intermet.2007.09.006


Author Zhang, W. Y.
Stoica, M.
Eckert, J.
Peng Yu
Jiang, J. Z.
Title Preparation of bulk Nd2Fe14B/Fe3B nanocomposite magnets with high rare earth content
Journal name Intermetallics   Check publisher's open access policy
ISSN 0966-9795
Publication date 2008-03-01
Year available 2008
Sub-type Article (original research)
DOI 10.1016/j.intermet.2007.09.006
Open Access Status Not yet assessed
Volume 16
Issue 3
Start page 341
End page 344
Total pages 4
Editor Liu, C. T.
Morris, D.
Sauthoff, G.
Place of publication United Kingdom
Publisher Elsevier Ltd.
Language eng
Subject C1
8612 Fabricated Metal Products
091207 Metals and Alloy Materials
Abstract NdFeCoB (x = 0, 20) rods with 1 mm diameter have been prepared by suction casting. The NdFeB rod is mainly composed of NdFeB, FeB and a small amount of amorphous phase, whereas the NdFeCoB sample is amorphous. Co addition considerably improves the glass-forming ability (GFA) of NdFeB, which is believed to result from the large decrease of the eutectic temperature due to Co addition. Co addition promotes the formation of the NdFeB hard magnetic phase in annealed alloys, which strengthens the exchange coupling action among the magnetic phases and thus leads to a significant enhancement of the magnetic properties of the bulk nanocomposite magnets. For example, the remanence, coercivity, and energy product are increased from 3.9 kG, 1.3 kOe, and 0.9 MGOe for the Co-free alloy to 8 kG, 4.5 kOe, and 6 MGOe after Co addition, respectively.
Keyword A. Composites
A. Magnetic intermetallics
B. Glasses, metallic
B. Magnetic properties
C. Rapid solidification processing
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
School of Mechanical & Mining Engineering Publications
 
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Created: Fri, 10 Apr 2009, 02:33:45 EST by Sally Beard on behalf of Materials