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Effect of Nonmagnetic Zn 2+ Cations on Initial Permeability of Microwave‐Treated NiMg Ferrites
Author(s) -
Chandra Babu Naidu K.,
Madhuri Wuppulluri
Publication year - 2016
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12571
Subject(s) - materials science , curie temperature , zinc , permeability (electromagnetism) , analytical chemistry (journal) , grain size , microwave , magnesium , crystallite , nuclear chemistry , ferromagnetism , metallurgy , condensed matter physics , chemistry , membrane , biochemistry , physics , quantum mechanics , chromatography
Magnesium is replaced systematically by zinc in Ni 0.2 Mg 0.8‐ x Zn x Fe 2 O 4 ( x = 0.2–0.8) prepared by microwave‐assisted solid‐state reaction route. The structure is confirmed by X‐ray diffractograms. An improvement in initial permeability is observed with substituent in Ni 0.2 Mg 0.8‐ x Zn x Fe 2 O 4 due to increase in average grain size. The obtained permeability values are varying between 106 and 687 at 1 MH z. The permeability plots revealed that Curie‐transition temperature ( T c ) is decreasing with increase in zinc. Both x = 0.2 and 0.4 compositions show low relative loss factor of order 10 −5 to 10 −4 , which are exhibiting required magnetic properties for transformer and inductor core applications.