Search Results - "Jovalekić, Čedomir"

Synthesis of CaO SiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil by Zdujić, Miodrag, Lukić, Ivana, Kesić, Željka, Janković-Častvan, Ivona, Marković, Smilja, Jovalekić, Čedomir, Skala, Dejan

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Structural, electrical and dielectric properties of spinel nickel ferrite prepared by soft mechanochemical synthesis by Lazarević, Zorica Ž., Jovalekić, Čedomir, Sekulić, Dalibor L., Milutinović, Aleksandra, Baloš, Sebastian, Slankamenac, Miloš, Romčević, Nebojša Ž.

“…•Sintered NiFe2O4 was prepared by a soft mechanochemical route from mixture powders.•XRD and Raman measurements indicate that the prepared samples have spinel…”
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Characterization of partially inverse spinel ZnFe2O4 with high saturation magnetization synthesized via soft mechanochemically assisted route by Lazarević, Zorica Ž., Jovalekić, Čedomir, Ivanovski, Valentin N., Rečnik, Aleksander, Milutinović, Aleksandra, Cekić, Božidar, Romčević, Nebojša Ž.

“…ZnFe2O4 was prepared by a soft mechanochemical route from two starting combinations of powders: (1) Zn(OH)2/α-Fe2O3 and (2) Zn(OH)2/Fe(OH)3 mixed in a…”
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Yttrium orthoferrite powder obtained by the mechanochemical synthesis by Lazarevic, Zorica, Jovalekic, Cedomir, Gilic, Martina, Ivanovski, Valentin, Umicevic, Ana, Sekulic, Dalibor, Romcevic, Nebojsa

“…Yttrium orthoferrite (YFeO3) powder was prepared by a mechanochemical synthesis from a mixture of Y2O3 and ?-Fe2O3 powders in a planetary ball mill for 2.5 h…”
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Tailoring of K0.8Al0.7Fe0.15Si2.25O6 Leucite Based Dental Ceramic Material by Kremenović, Aleksandar, Fabián, Martin, Vulić, Predrag, Jovalekić, Čedomir, Briančin, Jaroslav

“…Potassium based ceramic materials composed from leucite in which 5 % of Al is exchanged with Fe and 4 % of hematite was synthesized by mechanochemical…”
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Structural and electrical properties of the 2Bi2O3. 3ZrO2 system by JOVALEKIC, Cedomir, ZDUJIC, Miodrag, POLETI, Dejan, KARANOVIC, Ljiljana, MITRIC, Miodrag

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Temperature-induced structure and microstructure evolution of nanostructured Ni0.9Zn0.1O by Kremenović, Aleksandar, Antić, Bratislav, Vučinić-Vasić, Milica, Colomban, Philippe, Jovalekić, Čedomir, Bibić, Nataša, Kahlenberg, Volker, Leoni, Matteo

“…The crystal structure and microstructure of as‐prepared and annealed Ni0.9Zn0.1O were refined at room temperature in both the Fmm and Rm space groups. It is…”
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Electrical properties of barium titanate stannate functionally graded materials by Marković, Smilja, Jovalekić, Čedomir, Veselinović, Ljiljana, Mentus, Slavko, Uskoković, Dragan

“…Barium titanate stannate (BTS) functionally graded materials (FGMs) with different tin/titanium concentration gradient were prepared by the powder-stacking…”
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Phase composition of Bi2O3 specimens doped with Ti, Zr and Hf by Poleti Dejan, Karanović Ljiljana, Zdujić Miodrag, Jovalekić Čedomir

“…Powder mixtures of α-Bi2O3 containing 2, 5 and 10 mole % of TiO2, ZrO2 or HfO2 were homogenized, heated at 820ºC for 24 h and quenched in air. X-ray powder…”
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Mechanochemical synthesis of CaO•ZnO.K2CO3 catalyst: Characterization and activity for methanolysis of sunflower oil by Kesić Željka, Lukić Ivana, Zdujić Miodrag, Jovalekić Čedomir, Liu Hui, Skala Dejan

“…The goal of this study was to prepare CaO.ZnO catalyst which contain small amount of K2CO3 and analyze its activity for biodiesel synthesis. Catalyst was…”
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Mechanochemical synthesis and electrical conductivity of nanocrystalline delta-Bi2O3 stabilized by HfO2 and ZrO2 by LJILJANA KARANOVIĆ, DEJAN POLETI, ČEDOMIR JOVALEKIĆ, MIODRAG ZDUJIĆ

“…A powder mixture of a-Bi2O3 and HfO2, in the molar ratio 2:3, was mechanochemically treated in a planetary ball mill under air, using zirconium oxide vials and…”
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Mechanochemical synthesis of stoichiometric nickel and nickel-zinc ferrite powders with Nicolson-Ross analysis of absorption coefficients by Jovalekić Čedomir, Nikolić Aleksandar S., Gruden-Pavlović Maja, Pavlović Miodrag B.

“…The interest in finding new methods for preparation of nickel ferrite (NiFe2O4) and nickel-zinc ferrite (NixZn1-xFe2O4) powders has recently increased, due to…”
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Structural and magnetic properties of mechanochemically synthesized nanocrystalline titanium monoxide by Barudžija Tanja, Gusev Alexey A., Jugović Dragana, Dramićanin Miroslav, Zdujić Miodrag, Jovalekić Čedomir, Mitrić Miodrag

“…Nano-sized titanium monoxide (TiO) powder was prepared by mechanochemical synthesis. A mixture of commercial Ti and TiO2 (rutile) powders with the molar ratio…”
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Mechanochemical synthesis of γ-Bi2O3 by POLETI, Dejan, KARANOVI, Ljiljana, ZDUJIC, Miodrag, JOVALEKIC, Cedomir, BRANKOVIC, Zorica

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Structural and magnetic properties of mechanochemically synthesized nanosized yttrium titanate by Barudžija Tanja, Gusev Alexey A., Jugović Dragana, Marinović-Cincović Milena, Dramićanin Miroslav, Zdujić Miodrag, Jovalekić Čedomir, Mitrić Miodrag

“…Nanosized perovskite YTiO3 with the mean crystallite size of 18 nm was synthesized for the first time by mechanochemical treatment. The mechanochemical solid…”
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Soft mechanochemical synthesis and characterization of nanodimensional spinel ferrites by Lazarevic, Z., Milutinovic, A., Romcevic, M., Romcevic, N., Jovalekic, C., Sekulic, D., Slankamenac, M.

“…NiFe 2 O 4 and ZnFe 2 O 4 ferrites have been prepared by soft mechanochemical synthesis. The sintered samples were analyzed by XRD and Raman spectroscopy…”
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Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil by Zdujić, Miodrag, Lukić, Ivana, Kesić, Željka, Janković-Častvan, Ivona, Marković, Smilja, Jovalekić, Čedomir, Skala, Dejan

“…[Display omitted] •Calcium silicates were synthesized by mechanochemical treatment and calcination.•The pure CaSiO3, Ca3Si2O7 and Ca2SiO4 exhibited no…”
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Assessment of CaTiO3, CaMnO3, CaZrO3 and Ca2Fe2O5 perovskites as heterogeneous base catalysts for biodiesel synthesis by Kesić, Željka, Lukić, Ivana, Zdujić, Miodrag, Jovalekić, Čedomir, Veljković, Vlada, Skala, Dejan

“…Calcium-containing perovskites CaTiO3, CaMnO3, CaZrO3 and Ca2Fe2O5 were synthesized by calcination of mechanochemically treated stoichiometric mixtures of…”
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Densification, Microstructure, and Electrical Properties of BaTiO 3 (BT) Ceramics Prepared from Ultrasonically De-Agglomerated BT Powders by Marković, Smilja, Miljković, Miroslav, Jovalekić, Čedomir, Mentus, Slavko, Uskoković, Dragan

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Impedance spectroscopy of nanocrystalline MgFe2O4 and MnFe2O4 ferrite ceramics: Effect of grain boundaries on the electrical properties by Sekulic, Dalibor, Lazarevic, Zorica, Jovalekic, Cedomir, Milutinovic, Aleksandra, Romcevic, Nebojsa

“…Two ferrite ceramic materials, MgFe2O4 and MnFe2O4, were successfully fabricated by a conventional sintering of nanosized powders (at 1373 K for 2 h)…”
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