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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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Litsardakis, G.
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Topics
Publications (4/4 displayed)
- 2019Structure Differentiation of Hydrophilic Brass Nanoparticles Using a Polyol Toolbox
- 2007Effects of Gd substitution on the structural and magnetic properties of strontium hexaferritescitations
- 2007Structural and magnetic properties of barium-gadolinium hexaferritescitations
- 2007Structural and magnetic properties of barium hexaferrites with Gd-Co substitutioncitations
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article
Effects of Gd substitution on the structural and magnetic properties of strontium hexaferrites
Abstract
<p>The effect of Gd substitution in M-type strontium hexaferrites has been examined in two series of samples, (Sr<sub>1 - x</sub> Gd<sub>x</sub>) O · 5.25Fe<sub>2</sub> O<sub>3</sub> and Sr<sub>1 - x</sub> Gd<sub>x</sub> Fe<sub>12 - x</sub> Co<sub>x</sub> O<sub>19</sub>, both prepared by the ceramic method, where x = 0 - 0.40. The samples have been characterized by XRD, VSM and SEM-EDAX techniques. All substituted samples present primarily the hexaferrite structure. Sample (Sr<sub>0.95</sub> Gd<sub>x 0.05</sub>) O · 5.25Fe<sub>2</sub> O<sub>3</sub> is single phase. Formation of impurity phases is affected by stoichiometry and presence of Co. In Sr-Gd samples, coercivity showed a maximum value of 305 kA/m (3.8 kOe) for x = 0.20, while remanence and saturation magnetization did not decrease. Coercivity and magnetization in the Sr-Gd-Co series decreased steadily with substitution degree.</p>