Magnetic properties of Ni ferrites substituted by divalent Zn, Cu and Co ions

Author

Usakova, Mariana ; Usak, Elemir ; Jancarik, Vladimir

Author_Institution

Inst. of Electr. Eng., Slovak Univ. of Technol., Bratislava, Slovakia

fYear

2014

fDate

19-20 May 2014

Firstpage

674

Lastpage

677

Abstract

Substituted Ni ferrite samples with chemical composition Ni_1-x-y-zZn_xCu_yCo_zFe₂O₄, where x = 0.4, 0.5 and 0.6, y = 0.1, z = 0.01 and 0.02 were prepared by classical ceramic technology at the temperature of 1200°C. The influence of divalent Zn, Cu and Co ions substitution on the magnetic properties of spinel Ni ferrites was studied. The magnetic properties, such as the Curie temperature, coercive field, remanent magnetic flux density, hysteresis loop area as well as the amplitude and initial permeability were investigated by means of thermo-magnetic analysis and magnetisation curves measurements at low frequencies.

Keywords

Curie temperature; ceramics; cobalt compounds; coercive force; copper compounds; ferrites; magnetic flux; magnetic hysteresis; magnetic permeability; materials preparation; nickel compounds; remanence; thermomagnetic effects; zinc compounds; Curie temperature; Ni_1-x-y-zZn_xCu_yCo_zFe₂O₄; chemical composition; classical ceramic technology; coercive field; divalent Co ion substitution; divalent Cu ion substitution; divalent Zn ion substitution; hysteresis loop area; initial permeability; magnetic properties; magnetisation curves; remanent magnetic flux density; spinel Ni ferrites; temperature 1200 degC; thermomagnetic analysis; Education; Ions; Magnetic hysteresis; Magnetic properties; Magnetic susceptibility; Modems; Permeability; magnetic properties; magnetisation curves; substituted Ni ferrites; thermo-magnetic analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

ELEKTRO, 2014

Conference_Location

Rajecke Teplice

Print_ISBN

978-1-4799-3720-2

Type

conf

DOI

10.1109/ELEKTRO.2014.6848986

Filename

6848986