Effect of niobium on glass-formation ability and soft magnetic properties of Gd-doping glassy alloys |
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| Authors: | Xuan LIU Yanhong DING Shuisheng ZHAO Yi LONG Rongchang YE Yongqin CHANG |
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| Affiliation: | aSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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| 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. |
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| Keywords: | iron-based glassy alloys glass-formation ability soft magnetic properties permeability spectrum rare earths |
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