Abstract
The dissociation behavior of CuO1-x from NiCuZn ferrite has been studied with special reference to the oxidation state of Fe contamination introduced from ball mill. The oxidation state of Fe is greatly affected by the ambient atmosphere during ball-milling. In case of CO2 atmosphere, CuO is reduced significantly, but, in case of O2 atmosphere, CuO is not reduced. It is thought that the strong reduction of CuO is caused by the reaction with a strong reductive Fe(OH)2 which is Fe contamination introduced from ball mill.
