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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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Dimitrijevic, Silvana
Mining and Metallurgy Institute Bor
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (3/3 displayed)
- 2023Synthesis and characterization of high-entropy A2B2O7 pyrochlore with multiple elements at A and B sitescitations
- 2023Biosynthesis of Silver Nanoparticles Using Salvia pratensis L. Aerial Part and Root Extracts: Bioactivity, Biocompatibility, and Catalytic Potentialcitations
- 2022Investigation of hazardous waste a case study of electric arc furnace dust characterizationcitations
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article
Synthesis and characterization of high-entropy A2B2O7 pyrochlore with multiple elements at A and B sites
Abstract
<jats:p>Single nano high-entropy pyrochlore-type compound (A2B2O7) with 7 differentrare-earth cations at site A and 3 different metal cations at site B withequiatomic amounts (7A1/7)2(3B1/3)2O7 is successfully obtained. The powderwith nominal composition(La1/7Sm1/7Nd1/7Pr1/7Y1/7Gd1/7Yb1/7)2(Sn1/3Hf1/3Zr1/3)2O7 was fabricated byreacting metal nitrates (site A) and metal chlorides (site B) with glycineduring the combustion reaction. The XRD analysis revealed that the powderattained during synthesis is in an amorphous state. To inducecrystallization of the obtained pyrochlore structure, the post-calcinationprocess at 600-1500?C was conducted and studied. Results of this studyshowed that the monophase pyrochlore (A2B2O7) structure is obtained duringthe calcination at 900?C. The high-density ceramic pellet with 97% oftheoretical density and free of any additives was obtained throughpressureless sintering at 1650?C for 4 h in the air using the powdercalcined at 900?C.</jats:p>