A Mössbauer spectroscopy study of ultrafine particles of amorphous Fe37Ni28B34and Fe52Ni37B11

Preparation of small alloy particles of Fe
37
Ni
28
B
34
and Fe
52
Ni
37
B
11
is achieved by reduction of the metal ions using KBH
4
in aqueous solution. Möss-bauer and X-ray diffraction studies show that the particles are amorphous. Mössbauer spectra obtained after annealing experiments indicate that the alloys are stable up to about 600 K.