Title :
Nano-scale microstructure - magnetic properties relationship in clustered Nd-Fe-Al glassy magnets
Author :
Chiriac, H. ; Lupu, N.
Author_Institution :
Nat. Inst. of Res. & Dev. for Tech. Phys., Iasi, Romania
Abstract :
Rapidly and slowly quenched Nd50Fe40Al10 glassy alloys with thicknesses up to 2 mm were investigated by structural and magnetic measurements. The huge increase of the coercive field up to 5.5 T at low temperatures as well as the dependence on the cooling rate are strongly related to the existence of the nano-clusters developed in the amorphous matrix.
Keywords :
aluminium alloys; coercive force; ferromagnetic materials; iron alloys; metallic glasses; nanostructured materials; neodymium alloys; neutron diffraction; permanent magnets; quenching (thermal); 2 mm; 5.5 T; Nd-Fe-Al; Nd-Fe-Al clustered glassy magnets; Nd-Fe-Al glassy alloys; alloy structural/magnetic measurements; amorphous matrix nano-clusters; coercive field cooling rate dependence; low temperature magnetic coercive fields; nano-scale microstructure magnetic properties relationship; neutron diffraction patterns; rapidly/slowly quenched glassy alloy thickness; Aluminum alloys; Amorphous materials; Cooling; Iron alloys; Magnetic properties; Magnetic variables measurement; Magnets; Microstructure; Neodymium; Temperature dependence;
Conference_Titel :
Semiconductor Conference, 2002. CAS 2002 Proceedings. International
Print_ISBN :
0-7803-7440-1
DOI :
10.1109/SMICND.2002.1105817
