The present investigations deal with the direct room temperature synthesis
of magnetic composites of a copolymer with nanosized particles of Mn-Zn fer
rites in different sizes. Mossbauer, X-ray diffraction and infrared studies
establish the formation of nanosized particles of Mn-Zn ferrites at room t
emperature, the effect of concentration of zinc ions on the size and the ef
fect of heat treatment on the size as well as phase of the magnetic particl
es. (C)1999 Acta Metallurgica Inc.