QUANTITATIVE INVESTIGATION OF THE INFLUENCE OF ADDITION ELEMENTS ON THE OXIDATION OF THE ND2FE14B PHASE

Authors
STEYAERT S LEBRETON JM TEILLET J
Citation
S. Steyaert et al., QUANTITATIVE INVESTIGATION OF THE INFLUENCE OF ADDITION ELEMENTS ON THE OXIDATION OF THE ND2FE14B PHASE, Solid state communications, 108(1), 1998, pp. 33-36
Citations number
12
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
108
Issue
1
Year of publication
1998
Pages
33 - 36
Database
ISI
SICI code
0038-1098(1998)108:1<33:QIOTIO>2.0.ZU;2-J
Abstract
The positive influence of addition elements (V and Nb) on the oxidatio n behaviour of the Nd2Fe14B phase in sintered Nd-Fe-B magnets was quan tified by Mossbauer spectrometry. The dissociation rate of the phase d ecreases in magnets containing corrosion-resistant intragranular preci pitates (V-Fe-B and Nb-Fe-B). The activation energy is comparable for each sample, indicating that the pre-exponential factor of the diffusi vity has a greater influence on the dissociation rate. (C) 1998 Elsevi er Science Ltd. All rights reserved.