journal article·2005-04

Investigation on structure-magnetic property correlation in melt-spun Sm(Co0.56Fe0.31Cu0.04Zr0.05B0.04) ribbons

R. Gopalan, D.H. Ping, K. Hono, M.Q. Huang, B.R. Smith, Z.M. Chen, B.M. Ma

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Abstract

Abstract The effect of microstructural variation on magnetic properties of Sm(Co0.56Fe0.31Cu0.04Zr0.05B0.04)z ( z = 8 , 10 and 12) melt-spun ribbons was investigated. A high coercivity (iHc) of 11 kOe was obtained in as-spun ribbons of z = 8 . The ribbon had nanosized grains of ∼10 nm with 1:7H (TbCu7 type) as a major phase. The ribbon with a high z ( z = 12 ) displayed large grain size (∼50 nm) having 2:17H (Th2Ni17 type) as a major phase. Boron enriched precipitates were observed in both z = 8 and 12 ribbons. The boron solubility in the 1:7H phase was more than that in 2:17H phase. The variation of coercivity with z was related to the grain size.
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Research context

OpenAlex topics: Magnetic Properties of Alloys · Magnetic properties of thin films · Magnetic Properties and Applications

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