Browsing School of Materials Engineering (Articles) by Author "heczko@fzu.cz"
Now showing items 1-4 of 4
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Influence of different synthesis approach on doping behavior of silver nanoparticles onto the iron oxide-silica coreshell surfaces
Norsuria, Mahmed; Hua, Jiang; Heczko, Oleg; Maki, Ryuji; Söderberg, Outi O.; Haimi, Eero; Hannula, Simo Pekka, Prof. (Springer Science+Business Media B.V., 2012-07)Silver (Ag) nanoparticles with the crystallite size ranging from 13-24 nm were successfully doped onto the surface of iron oxide-silica coreshell particles. In the process, iron oxide particles having a size distribution ... -
Influence of sintering temperature on the properties of pulsed electric current sintered hybrid coreshell powders
Norsuria, Mahmed; Larismaa, Juha; Heczko, Oleg; Cura, M. Erkin; Hannula, Simo-Pekka, Dr. (Elsevier, 2013-10)The influence of pulsed electric current sintering (PECS) temperature on the properties of bulk materials consolidated from three different types of hybrid powders have been studied. These powders consisted of iron ... -
The magnetic and oxidation behavior of bare and silica-coated iron oxide nanoparticles synthesized by reverse co-precipitation of ferrous ion (Fe²⁺) in ambient atmosphere
Norsuria, Mahmed; Heczko, Oleg; Lancok, A.; Hannula, Simo Pekka, Prof. (Elsevier/NORTH-HOLLAND, 2014-03)The synthesis of iron oxide nanoparticles, i.e., magnetite was attempted by using only ferrous ion (Fe²⁺) as a magnetite precursor, under an ambient atmosphere. The room temperature reverse co-precipitation method was used, ... -
Novel iron oxide–silica coreshell powders compacted by using pulsed electric currentsintering: Optical and magnetic properties
Norsuria, Mahmed; Heczko, Oleg; Maki, Ryuji; Söderberg, Outi O.; Haimi, Eero; Hannula, Simo Pekka, Prof. (Elsevier Ltd, 2012-08)The properties of the bulk materials consolidated of silica coreshell powders with iron oxide core have been studied. Iron oxide nanoparticles smallerthan 20nmin sizewere synthesized by a reverse co-precipitation processin ...