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|Title:||Coercivity of rapidly quenched Nd60Fe30Al10 alloys|
|Authors:||Ding, J. |
|Citation:||Ding, J., Li, Y., Wang, Z.X. (1999-03-21). Coercivity of rapidly quenched Nd60Fe30Al10 alloys. Journal of Physics D: Applied Physics 32 (6) : 713-716. ScholarBank@NUS Repository. https://doi.org/10.1088/0022-3727/32/6/018|
|Abstract:||High coercivities were obtained in partly amorphous Nd60Fe30Al10 ribbons that had been melt spun at 5 m s-1 and in a water-quenched rod, whereas low coercivities were obtained in fully amorphous ribbons that had been melt spun at high wheel speeds (>20 m s-1). High coercivities were measured for the water-quenched and the chill-cast rods. This result indicates that the coercivity of the Nd-Fe-Al alloy is strongly dependent on the quenching rate. The magnetic properties of the water-quenched rod were studied as functions of temperature. The coercivity increased from 318 kA m-1 at room temperature to 2085 kA m-1 at liquid nitrogen temperature. The ribbon that had been melt spun at 5 m s-1 possessed a coercivity of 3266 kA m-1 (4.1 Tesla) at 78 K. Such high coercivities were attributed to a large local magnetic anisotropy which is probably produced by Nd atoms.|
|Source Title:||Journal of Physics D: Applied Physics|
|Appears in Collections:||Staff Publications|
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