TY - JOUR
T1 - Investigations on the magnetic properties of high-coercivity (Nd1-xFex)90Al10 bulk amorphous alloys
AU - Lupu, N.
AU - Chiriac, H.
AU - Takeuchi, A.
AU - Inoue, A.
PY - 2001/1/1
Y1 - 2001/1/1
N2 - Bulk rods with diameters up to 3 mm prepared by suction casting and respectively mould casting and melt-spun amorphous ribbons with thicknesses in the range 25 - 150 μm with compositions Nd90-xFexAl10 (x = 35; 40; 50) were investigated by XRD, DSC and magnetic measurements in the temperature range 5 - 600 K. The microstructure and magnetic properties are strongly dependent on the cooling rate, preparation process and Fe content. The large values of the coercive field, which amount to 320 kA/m in the as-cast state as well as the increase with decrease of the temperature and cooling rate result from the formation of very small metastable or nonequilibrium magnetic clusters.
AB - Bulk rods with diameters up to 3 mm prepared by suction casting and respectively mould casting and melt-spun amorphous ribbons with thicknesses in the range 25 - 150 μm with compositions Nd90-xFexAl10 (x = 35; 40; 50) were investigated by XRD, DSC and magnetic measurements in the temperature range 5 - 600 K. The microstructure and magnetic properties are strongly dependent on the cooling rate, preparation process and Fe content. The large values of the coercive field, which amount to 320 kA/m in the as-cast state as well as the increase with decrease of the temperature and cooling rate result from the formation of very small metastable or nonequilibrium magnetic clusters.
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U2 - 10.1557/proc-674-u2.7
DO - 10.1557/proc-674-u2.7
M3 - Article
AN - SCOPUS:85009921502
SN - 0272-9172
VL - 674
SP - U2.7.1-U2.7.6
JO - Materials Research Society Symposium - Proceedings
JF - Materials Research Society Symposium - Proceedings
ER -