Title :
Intergrain interactions in nanocrystalline isotropic PrFeB-based magnets
Author :
Bollero, A. ; Yan, A. ; Gutfleisch, Oliver ; Muller, K.H. ; Schultz, L.
Author_Institution :
Inst. of Solid State & Mater. Res., IFW Dresden, Germany
fDate :
March 30 2003-April 3 2003
Abstract :
In this paper, Pr/sub 9/Nd/sub 3.0/Dy/sub 1/Fe/sub 72/Co/sub 8/B/sub 6.9/Zr/sub 0.1/ alloy has been used to prepare a series of nanocomposites by intensive milling with various amounts of Fe. Exchange-coupling phenomena have been studied by analyzing the evolution of the corresponding /spl delta/J values when varying the i) Fe content, ii) annealing temperature, i.e. grain size, and iii) measurement temperature, i.e. variation of the exchange length.
Keywords :
annealing; boron alloys; cobalt alloys; dysprosium alloys; exchange interactions (electron); ferromagnetic materials; grain size; iron alloys; nanocomposites; neodymium alloys; praseodymium alloys; zirconium alloys; Pr/sub 9/Nd/sub 3.0/Dy/sub 1/Fe/sub 72/Co/sub 8/B/sub 6.9/Zr/sub 0.1/; annealing temperature; exchange coupling; exchange length; grain size; intensive milling; intergrain interactions; nanocrystalline isotropic PrFeB-based magnets; Annealing; Cobalt alloys; Grain size; Iron alloys; Magnets; Milling; Nanocomposites; Neodymium; Temperature measurement; Zirconium;
Conference_Titel :
Magnetics Conference, 2003. INTERMAG 2003. IEEE International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7647-1
DOI :
10.1109/INTMAG.2003.1230551
