Abstract
Based on the dissociation characteristics determined volumetrically, copper ferrite powder samples having various oxygen deficiencies were subjected to different heat-treatments under the non-oxidizing condition. It is shown that in addition to the heat-treatment, oxygen deficiency must be taken into consideration for understanding the crystal distortion in copper ferrite. Dependence of crystal distortion on the oxygen deficiency could be interpreted as due to the reduced population of Cu++ in the octahedral site in spinel lattice, caused by the separation of CuO from the host phase and by the formation of Cu+.
