Open AccessSynthesis and Characterization of Copper Ferrite Nanoparticles
Author(s) -
Faten Haithum Mulud,
Najat A. Dahham,
Ibrahim F. Waheed
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/928/7/072125
Subject(s) - coercivity , materials science , analytical chemistry (journal) , spinel , lattice constant , tetragonal crystal system , ferrite (magnet) , annealing (glass) , magnetization , dielectric , copper , transmission electron microscopy , electrical resistivity and conductivity , scanning electron microscope , ferromagnetism , fourier transform infrared spectroscopy , diffraction , condensed matter physics , crystallography , crystal structure , metallurgy , magnetic field , nanotechnology , chemical engineering , chemistry , composite material , optics , optoelectronics , physics , electrical engineering , engineering , chromatography , quantum mechanics
Copper ferrite CuFe 2 O 4 nanoparticles were synthesized by sol-gel method with different annealing temperatures (200, 450, 650 and 850) °C. Structural, morphological, magnetic and electrical properties were studied using X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FT-IR), vibrating sample magnetometer (VSM) and LCR meter. The XRD patterns showed the system structure in Cu-ferrite had deformed at 650 °C from a cubic to a tetragonal system with apparrent a secondary phase CuO. Lattice constant decreases with increasing annealing temperatures, while crystalline volume increases. The FT-IR spectrum of sample under investigations shows two significant absorption bands, which refer to the formation of a single-phase cubic spinel. Magnetization revealed a soft ferromagnetic behavior for the composition sintered at 850 °C. The saturation magnetization, remnant magnetization, and coercivity were 32 emu.g −1 , 11.64 emu.g −1 , 517.16 emu.g −1 , respectively. The electrical measurement of sample shows decrease in the real and imaginary part of dielectric constant with increasing frequency while and AC conductivity increasing.