期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 321, 期 19, 页码 3346-3351出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2009.06.024
关键词
Cu-substituted ferrites; Magnetic properties; Magnetisation curves; Mossbauer spectra
资金
- VEGA agency of the Slovak Republic [VG-1/0575/09, VG-1/0606/09]
Polycrystalline NiZn ferrites with the chemical formula (Ni0.3Zn0.7)(1-x)MexFe2O4 where Me is Cu with x = 0.05, 0.1 and 0.25 have been prepared by a ceramic method. Certain magnetic properties such as the coercivity H-c, initial permeability mu(i) and saturation magnetisation M-s of the ferrites have been measured and discussed from the point of view of the substituting element contents as well as the total pore volume. The Mossbauer spectra of selected samples have been analysed as well. According to the requirement of particular applications, the properties of NiZn ferrite have to be improved by means of proper substitution of selected ions. (C) 2009 Elsevier B.V. All rights reserved.
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