Title :
A Mossbauer study of spring magnets
Author :
Sorescu, Monica ; Grabias, A. ; Valeanu, M.
Author_Institution :
Dept. of Phys., Duquesne Univ., Pittsburgh, PA, USA
fDate :
March 30 2003-April 3 2003
Abstract :
In this paper, seven compositions of the Nd/sub x/Fe/sub 100-x-y/B/sub y/ ribbons were prepared by melt spinning method with Nd and B content increasing from 7.3 and 3.6 to 11 and 6, respectively. The alloys were annealed under optimised conditions to obtain a composite material consisting of the hard magnetic Nd/sub 2/Fe/sub 14/B and soft magnetic /spl alpha/-Fe phases. Phase analysis was performed by Mossbauer spectroscopy, complemented by standard X-ray diffraction and hysteresis loop measurements. The influence of alloy composition and annealing conditions of the hyperfine parameters and relative abundance of the phases is studied.
Keywords :
Mossbauer effect; X-ray diffraction; annealing; boron alloys; ferromagnetic materials; iron alloys; magnetic hysteresis; melt spinning; nanocomposites; neodymium alloys; permanent magnets; soft magnetic materials; Mossbauer spectra; Nd/sub x/Fe/sub 100-x-y/B/sub y/ ribbons; NdFeB; X-ray diffraction; alloy composition; annealing; composite material; hard magnetic phases; hyperfine parameters; hysteresis loop measurements; melt spinning; phase analysis; relative abundance; soft magnetic phases; spring magnets; Annealing; Composite materials; Iron alloys; Magnetic analysis; Magnets; Neodymium; Performance analysis; Soft magnetic materials; Spinning; Springs;
Conference_Titel :
Magnetics Conference, 2003. INTERMAG 2003. IEEE International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7647-1
DOI :
10.1109/INTMAG.2003.1230556
