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Spectral studies of the spinel ferrite system NixZn1-xFe2O4
Mohamed A. El Hiti
; Department of Physics, Faculty of Science, Tanta University, Tanta, Egypt
Mohamed El Shabasy
; Department of Physics, Faculty of Science, Minia University, Minia, Egypt
Sažetak
X-ray diffraction, DTA, IR and SEM investigations were carried out for a series of samples of the system NixZn1-xFe2O4 (with x=0.0, 0.2, 0.4, 0.6, 0.8 and 1.0) prepared using the usual ceramic technique. The analysis of X-ray diffraction indicates that the samples have single phase with spinel cubic structure. The lattice constant (a), radius of tetrahedral ions (rtet), bulk density (D) and theoretical density (Dx) were found to decrease while the porosity (P) increases as the content of nickel ions (x) increases. SEM images indicate observable variations between the different compositions. IR absorption spectra showed the four characteristic peaks of ferrites. The position and intensity of the peaks are markedly composition dependent.
Ključne riječi
Hrčak ID:
299411
URI
Datum izdavanja:
1.9.1993.
Posjeta: 205 *