Fe-rich Nd-Fe-B ternary compounds are of great technological interest becau
se of their superior magnetic properties such as high coercivity and large
energy product [Rev. Mod. Phys. 63 (1991) 819]. Generally these materials a
re prepared by the melt-spinning technique which has proved to be highly su
ccessful in the production of engineering materials in the form of ribbons,
wires and strips. With this technique not only a diverse range of alloying
can be achieved but also both crystalline and amorphous phases can be prod
uced. Here, Mossbauer spectroscopic measurements have been made to study th
e composition effect in the mwelt-spun Nd(FeB)(n), (2 less than or equal to
n less than or equal to8) alloys. The alloys n less than or equal to4 are f
ound to be crystalline and paramagnetic while 4 <n <5 are crystalline but c
omprise paramagnetic and ferromagnetic phases. The alloys for 5 less than o
r equal ton less than or equal to6 are completely amorphous but partially f
erromagnetic, while for n=8 the alloy comprises partially crystalline but c
ompletely ferromagnetic phases. (C) 2001 Elsevier Science BY All rights res
erved.