Characterization of nanostructured spinel NiFe2O4 obtained by soft mechanochemical synthesis

Autor: Lazarević Z.Ž., Jovalekić Č., Sekulić D., Slankamenac M., Romčević M., Milutinović A., Romčević N.Ž.
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Science of Sintering, Vol 44, Iss 3, Pp 331-339 (2012)
Druh dokumentu: article
ISSN: 0350-820X
DOI: 10.2298/SOS1203331L
Popis: Powdery nickel ferrite, NiFe2O4 has been obtained by soft mechanochemical synthesis in a planetary ball mill. Ni(OH)2 and Fe(OH)3 are used as initial compounds. This mixture was mechanically activated for 25h, uniaxial pressed and sintered at 1100°C for 2h. The phase composition of the sintered sample was analyzed by X-ray diffraction (XRD), energy dispersive spectrometer (EDS) and Raman spectroscopy. Morphologies were examined by scanning electron microscopy (SEM). The electrical DC/resistivity/conductivity at different temperatures was measured using a Source Meter Keithley 2410. An Impedance/Gain-Phase Analyzer (HP-4194) was used to measure the impedance spectra (100Hz - 10MHz) at different temperatures. [Projekat Ministarstva nauke Republike Srbije, br. III 45003 i br. III 45015]
Databáze: Directory of Open Access Journals