EFFECT OF HIGH-TEMPERATURE HYDROGEN TREATMENT ON MAGNETIC-PROPERTIES AND STRUCTURE OF TBFE2-BASED COMPOUNDS

Authors
ZAJKOV NK MUSHNIKOV NV GAVIKO VS YERMAKOV AY
Citation
Nk. Zajkov et al., EFFECT OF HIGH-TEMPERATURE HYDROGEN TREATMENT ON MAGNETIC-PROPERTIES AND STRUCTURE OF TBFE2-BASED COMPOUNDS, International journal of hydrogen energy, 22(2-3), 1997, pp. 249-253
Citations number
11
Categorie Soggetti
Energy & Fuels","Environmental Sciences","Physics, Atomic, Molecular & Chemical
Journal title
International journal of hydrogen energy → ACNP
ISSN journal
03603199
Volume
22
Issue
2-3
Year of publication
1997
Pages
249 - 253
Database
ISI
SICI code
0360-3199(1997)22:2-3<249:EOHHTO>2.0.ZU;2-S
Abstract
The influence of high temperature hydrogen treatment (HDDR-treatment) on magnetic properties of TbFe2 and quasibinary Tb(Fe(0.8)M(0.2))(2) c ompounds (where M=Al, Si, Ga, Co) has been investigated. Coercive forc e H increases considerably after HDDR-treatment in all investigated co mpounds and reaches the maximum value after hydrogen treatment in the temperature range of 700-780 degrees C. It was shown that TbFe2 HDDR-p owders can be used to produce the isotropic permanent magnets. Recombi nation of TbFe2 during hydrogen desorption at 740-750 degrees C was fo und to proceed, at least, in two stages with the appearance of Tb6Fe23 as an intermediate phase. Copyright (C) 1997 International Associatio n for Hydrogen Energy.