Cooling rate controlled microstructure and magnetic properties of metastable Fe20Nd80 alloys

2006 ◽  
Vol 14 (1) ◽  
pp. 47-53 ◽  
Author(s):  
G. Kumar ◽  
O. Filip ◽  
W. Löser ◽  
L. Schultz ◽  
J. Eckert
Keyword(s):  
Magnetic Properties ◽  
Cooling Rate ◽  
Rate Controlled ◽  
Microstructure And Magnetic Properties

Investigations on the Magnetic Properties of High-Coercivity (Nd1−xFex)90Al10 Bulk Amorphous Alloys

2001 ◽  
Vol 674 ◽  
Author(s):  
N. Lupu ◽  
H. Chiriac ◽  
A. Takeuchi ◽  
A. Inoue
Keyword(s):  
Magnetic Properties ◽  
Cooling Rate ◽  
Amorphous Alloys ◽  
Magnetic Measurements ◽  
High Coercivity ◽  
Magnetic Clusters ◽  
Cast State ◽  
Fe Content ◽  
Mould Casting ◽  
Microstructure And Magnetic Properties

ABSTRACTBulk 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; 45; 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.

The microstructure and magnetic properties of NdFeB magnets directly solidified at a low cooling rate

2004 ◽  
Vol 380 (1-2) ◽  
pp. 143-146 ◽  
Author(s):  
Zongjun Tian ◽  
Shandong Li ◽  
Kun Peng ◽  
Benxi Gu ◽  
Jianrong Zhang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Cooling Rate ◽  
Ndfeb Magnets ◽  
Microstructure And Magnetic Properties
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