caa a22 4500 463223306 CHVBK 20180405153219.0 cr unu---uuuuu 170326e20070301xx s 000 0 eng 10.1007/s10853-006-1235-9 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1235-9 Synthesis, phase formation study and magnetic properties of CoFe2O4 nanopowder prepared by mechanical milling [Elektronische Daten] [R. Sani, A. Beitollahi, Yu. Maksimov, I. Suzdalev] In this work we report the phase formation and magnetic properties of CoFe2O4 nanopowder prepared by mechanical alloying technique using metallic cobalt and hematite powder (1:1molar ratio) as the initial raw material in ambient air atmosphere. The formation of single phase cobalt ferrite of (Co 0.18 2+ Fe 0.82 3+ )[Co 0.82 2+ Fe 1.18 3+ ]O4 stoichiometry was confirmed for the samples milled above 15h without any heat-treatment by XRD and Mössbauer techniques. The average crystallite size of the sample milled for 30h was ∼13nm. The highest room temperature value of the magnetization measured at 1.5T was 51e.m.u/g for the sample milled for 25h which was much lower than the corresponding value of the bulk cobalt ferrite (80.8e.m.u/g at 300K) due to the size effect. Springer Science+Business Media, LLC, 2006 Sani R. Nanomaterial Research Group, Department of Metallurgy and Materials Engineering, Iran University of Science and Technology, Narmak, Tehran, Farjam, Iran aut Beitollahi A. Nanomaterial Research Group, Department of Metallurgy and Materials Engineering, Iran University of Science and Technology, Narmak, Tehran, Farjam, Iran aut Maksimov Yu Semenov Institute of Chemical Physics RAS, Moscow, Russia aut Suzdalev I. Semenov Institute of Chemical Physics RAS, Moscow, Russia aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/6(2007-03-01), 2126-2131 0022-2461 42:6<2126 2007 42 10853 https://doi.org/10.1007/s10853-006-1235-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1235-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sani R. Nanomaterial Research Group, Department of Metallurgy and Materials Engineering, Iran University of Science and Technology, Narmak, Tehran, Farjam, Iran aut NATIONALLICENCE 700 1- Beitollahi A. Nanomaterial Research Group, Department of Metallurgy and Materials Engineering, Iran University of Science and Technology, Narmak, Tehran, Farjam, Iran aut NATIONALLICENCE 700 1- Maksimov Yu Semenov Institute of Chemical Physics RAS, Moscow, Russia aut NATIONALLICENCE 700 1- Suzdalev I. Semenov Institute of Chemical Physics RAS, Moscow, Russia aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/6(2007-03-01), 2126-2131 0022-2461 42:6<2126 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer