Title :
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
Abstract :
Substituted Ni ferrite samples with chemical composition Ni1-x-y-zZnxCuyCozFe2O4, 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; Ni1-x-y-zZnxCuyCozFe2O4; 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;
Conference_Titel :
ELEKTRO, 2014
Conference_Location :
Rajecke Teplice
Print_ISBN :
978-1-4799-3720-2
DOI :
10.1109/ELEKTRO.2014.6848986
