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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Ebrahimi, S. A. Seyyed
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2022Inducing Dzyaloshinskii–Moriya interaction in symmetrical multilayers using post annealingcitations
- 2008influence of ph on physical properties of nickel zinc nanocrystalline powders synthesized by a sol gel auto combustion methodcitations
- 2008investigation of the effective parameters on the synthesis of ni ferrite nanocrystalline powders by coprecipitation methodcitations
- 2008influence of different calcination conditions on the microstructure and phase constitution of nickel zinc ferrite nanocrystalline powders prepared by a sol gel auto combustion methodcitations
- 2006optimization of the fe sr ratio in processing of ultrafine strontium hexaferrite powders by a sol gel autocombustion methodcitations
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article
investigation of the effective parameters on the synthesis of ni ferrite nanocrystalline powders by coprecipitation method
Abstract
n this work, synthesis of nanostructured NiFe 2 O 4powders by coprecipitation method using novel precursors, followed by calcination was investigated for the first time. The synthesis was started by dissolving Fe and Ni chlorides and ammonium ferrous sulfate in deionized water. After stirring, the precipitating agent of NaOH was added to the solution and after 1 h aging, the resultant precipitates were washed with deionized water and acetone. Then the powder was characterized and the effects of different parameters such as molarity of precipitant, calcination temperature and the molar ratio of Ni 2+ion to the total iron ions were studied. It is concluded that an increase in molarity of precipitant can decrease the calcination temperature. The best conditions giving a single phase Ni-ferrite were using of 2.2 molar NaOH, calcination temperature of 900 °C and the molar ratio of nickel to iron as 0.5. The crystallite size of resulting ferrites was below 50 nm.