Effect of niobium on glass-formation ability and soft magnetic properties of Gd-doping glassy alloys
来源期刊：JOURNAL OF RARE EARTHS2008年第1期
论文作者：ZHAO Shuisheng LONG Yi YE Rongchang CHANG Yongqin DING Yanhong LIU Xuan
Key words：iron-based glassy alloys; glass-formation ability; soft magnetic properties; permeability spectrum; rare earths;
Abstract: 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 dement of Nb was added. Bulk glassy rod (Fe0.87Co0.13)68.5Gd3.5Nb3B25 with a diameter up to 3 mm was produced by eopper 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-xGd3.5NbxB25 (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)7.3Gd3.5Nb1.5B25glassy ribbon showed that the relaxation fiequency (f0) was 6.1 MHz.
ZHAO Shuisheng1，LONG Yi1，YE Rongchang1，CHANG Yongqin1，DING Yanhong1，LIU Xuan1
(1.School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China)
Abstract: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 dement of Nb was added. Bulk glassy rod (Fe0.87Co0.13)68.5Gd3.5Nb3B25 with a diameter up to 3 mm was produced by eopper 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-xGd3.5NbxB25 (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)7.3Gd3.5Nb1.5B25glassy ribbon showed that the relaxation fiequency (f0) was 6.1 MHz.
Key words:iron-based glassy alloys; glass-formation ability; soft magnetic properties; permeability spectrum; rare earths;
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