Hydrogen stability of SmCo5 permanent magnet

Authors
Lukin, AA Rabinovich, YM Bala, H Szymura, S Zhuravlev, AA Wiechula, J
Citation
Aa. Lukin et al., Hydrogen stability of SmCo5 permanent magnet, KOVOVE MAT, 38(2), 2000, pp. 107-115
Citations number
14
Categorie Soggetti
Material Science & Engineering
Journal title
KOVOVE MATERIALY-METALLIC MATERIALS
ISSN journal
0023432X → ACNP
Volume
38
Issue
2
Year of publication
2000
Pages
107 - 115
Database
ISI
SICI code
0023-432X(2000)38:2<107:HSOSPM>2.0.ZU;2-4
Abstract
The kinetic parameters of the destructive hydrogenation process of SmCo5 ty pe permanent magnet: activation energy and reaction order with respect to g aseous hydrogen are calculated, No hydride phases in the permanent magnet s tructure resulting from hydrogenation at the hydrogen pressure of ca. 0.3 M Pa in the temperature range of 273-373 K are found. The effect of hydrogen pressure and temperature of the environment on the permanent magnet exploit ation period are determined.