Open AccessMECHANOCHEMICAL AND CERAMIC SYNTHESIS OF COBALT FERRITE
Author(s) -
C. O. Ptitsyna,
Alexander P. Ilyin,
R. N. Rumyantsev,
Yu. N. Sakharova
Publication year - 2022
Publication title -
steklo i keramika
Language(s) - English
Resource type - Journals
ISSN - 0131-9582
DOI - 10.14489/glc.2022.01.pp.021-030
Subject(s) - cobalt , materials science , ferrite (magnet) , ceramic , scanning electron microscope , desorption , chemical engineering , diffraction , adsorption , cobalt ferrite , metallurgy , composite material , chemistry , organic chemistry , engineering , physics , optics
In this work we studied the effect of mechanochemical activation on the formation of the cobalt ferrite phase from iron and cobalt oxalates. X-ray phase, X-ray diffraction and synchronous thermal analysis, scanning electron microscopy, low-temperature nitrogen adsorption-desorption method were used to study the composition and properties of the resulting product. It has been established that cobalt ferrite is formed at a temperature of 1100 °C during solid-phase interaction of the initial components, and the use of mechanochemical activation of the initial components in a roller-ring vibration mill makes it possible to reduce the synthesis temperature to 400 °C. It is shown that CoFe2O4 obtained using the method of mechanochemical synthesis has a more developed specific surface area and porous structure in comparison with cobalt ferrite obtained by the ceramic method.