Effect of niobium on glass-formation ability and soft magnetic properties of Gd-doping glassy alloys

The effect of niobium on glass-formation ability and soft magnetic properties were studied in Fe-Gd-B glassy alloys. The glassy alloys exhibited high glass-formation ability when the element of Nb was added. Bulk glassy rod （Fe0.87Co0.13）68.5Gd3.5Nb3B25 with a diameter up to 3 mm was produced by cop...

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Bibliographic Details
Published in:Journal of rare earths 2008, Vol.26 (1), p.89-92
Main Author: 刘烜 丁艳红 赵水生 龙毅 叶荣昌 常永勤
Format: Article
Language:English
Subjects:
glass-formation ability
iron-based glassy alloys
permeability spectrum
rare earths
soft magnetic properties
成型工艺
玻璃合金
稀土元素
软磁特性
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Summary:The effect of niobium on glass-formation ability and soft magnetic properties were studied in Fe-Gd-B glassy alloys. The glassy alloys exhibited high glass-formation ability when the element of Nb was added. Bulk glassy rod （Fe0.87Co0.13）68.5Gd3.5Nb3B25 with a diameter up to 3 mm was produced by copper mold casting. The size of the atom might play an important role in increasing glass-formation ability. The coercive force of glassy （Fe0.87Co0.13）71.5.xGd3.sNbxB25 （x=1.2, 1.5, 2, 2.5, 3, 4） alloys decreased after the addition of niobium element and was in the range of 1.5-2.9 A/m. The permeability spectrum of （Fe0.87Co0.13）70.3Gd3.5Nb1.5B25 glassy ribbon showed that the relaxation frequency （f0） was 6.1 MHz.
ISSN:1002-0721
2509-4963
DOI:10.1016/S1002-0721(08)60044-7