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논문 기본 정보

저자정보
(Korea Institute of Industrial Technology) (Korea Institute of Industrial Technology) (Korea Institute of Industrial Technology) (Hanyang University) (Korea Institute of Industrial Technology)
저널정보
한국자기학회 Journal of Magnetics Journal of Magnetics Vol.29 No.3
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    초록·키워드

    In this study, Fe<SUB>bal.</SUB><SUB></SUB> B<SUB>16</SUB>(CeLa)<SUB>x</SUB> amorphous soft magnetic alloy ribbons with x ranging from 0 to 3.5 at.% were fabricated and the effects of Ce and La additions on their magnetic and thermal properties were analyzed. The fabricated ribbons were subjected to stress relief annealing at 375 °C for five minutes, and their microstructures were compared and analyzed using Electron Backscatter Diffraction. The saturation magnetization in the Fe<SUB>bal.</SUB>B<SUB>16</SUB> at.% ribbons decreased due to the atomic size differences among Fe, B, Ce, and La, while the coercivity stabilized at 20.75 A/m when the CeLa content exceeded 2.0 at.%. After stress relief annealing, further reductions in coercivity were observed, with the CeLa 3.5 at.% sample exhibiting the lowest coercivity of 12.74 A/m. When the CeLa content exceeded 1.5 at.%, the activation energy increased to over 515.41 kJ/mol, resulting in a stable reduction in coercivity and high thermal stability. In compositions with CeLa content of 2.0 at.% or higher crystallization did not occur, and as a result these alloys maintained low coercivity and high thermal stability and demonstrated excellent properties.

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