Document Type : Original Article
School of Physics, Damghan University, Damghan, Iran
CuFe2O4 ferrite was synthesized by the citrate precursor method and further calcined at 800, 900, and 1000 ◦C. The structural characterization indicated that the X-ray diffraction patterns of the samples could be readily indexed to tetragonal-type CuFe2O4 ferrite with the I 41/AMD space group. With the increase of calcination temperature, the larger Cu2+ ion at the tetragonal site was substituted for the smaller Fe3+ ion at the octahedral site. The half-width of the X-ray diffraction peaks can be influenced by several factors such as instrumental, crystallite size, and lattice microstrain broadening. The results of crystallite size and microstrain estimated by different methods for the samples show the Size-Strain Plot method is more accurate which the value of R2 is near 1 with all data points touching the fitting line better than the other methods. Results showed that the increase of the crystallite sizes with calcination temperature could be mainly attributed to the increase of stretching microstrain.