Preparation by the double extraction process with preliminary neutron irradiation of yttria or calcia stabilised cubic zirconium dioxide microspheres

Marcin Brykala; Rafal Walczak; Danuta Wawszczak; Stanislaw Kilim; Marcin Rogowski; Elzbieta Strugalska-Gola; Tadeusz Olczak; Tomasz Smolinski; Marcin Szuta

doi:https://doi.org/10.1016/j.net.2020.06.032

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자료유형: 학술저널

저자정보: Marcin Brykala (Institute of Nuclear Chemistry and Technology (ICHTJ)) Rafal Walczak (Institute of Nuclear Chemistry and Technology (ICHTJ)) Danuta Wawszczak (Institute of Nuclear Chemistry and Technology (ICHTJ)) Stanislaw Kilim (National Centre for Nuclear Research (NCBJ)) Marcin Rogowski (Institute of Nuclear Chemistry and Technology (ICHTJ)) Elzbieta Strugalska-Gola (National Centre for Nuclear Research (NCBJ)) Tadeusz Olczak (Institute of Nuclear Chemistry and Technology (ICHTJ)) Tomasz Smolinski (Institute of Nuclear Chemistry and Technology (ICHTJ)) Marcin Szuta (National Centre for Nuclear Research (NCBJ))

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제1호

발행연도: 2021.1

수록면: 188 - 198 (11page)

DOI: https://doi.org/10.1016/j.net.2020.06.032

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A modern approach to nuclear energy involves reprocessing like transmutations of spent nuclear fuelproducts to reduce their radiotoxicity and time needed for their storage. For this purpose, they areimmobilized in inert matrices made of zirconia and can be "burned" in fast neutron reactor or AcceleratorDriven System. These matrices in spherical form can be obtained by sol-gel process. The paper presents amethod of microspheres fabrication based on the combined Complex Sol-Gel Process and doubleextraction process consisting in the preparation of zirconium-ascorbate sol and simultaneous extractionof water and nitrates. The procedure allows obtaining gel microspheres with a diameter of 50 mm, whichafter heat treatment are processed into the final product. The synthesis of zirconia microspheres withYttrium by internal gelation process is well known for over a decade now. However, the explanation andcharacterization of synthesis of such material by extraction of water process is rarely found. Parameterssuch as: pH, viscosity, shape, sphericity and crystal structure have been determined for synthesizedproducts and semi-products. In addition, preliminary research consisting in irradiation of the obtainedmaterials in fast and t

#Yttria stabilised zirconia #Calcia stabilised zirconia #Sol-gel #Double extraction process #Microspheres #Neutron irradiation #Complex Sol-Gel Process

참고문헌 (40)

참고문헌 신청

M. S. Rezaei / 2007 / Synthesis of pure tetragonal zirconium oxide with high surface area / J. Mater. Sci 42:1228~1237

W. L. Gonga / 2000 / Zirconia ceramics for excess weapons plutonium waste / J. Nucl. Mater 277:239~249

V. B. Raghavendra / 2011 / Amorphous, monoclinic, and tetragonal porous zirconia through a controlled self-sustained combustion route / J. Am. Ceram. Soc 94:1747~1755

M. Li / 2013 / A thermally stable mesoporous ZrO2eCeO2eTiO2 visible light photocatalyst / Chem. Eng. J 229:118~125

V. S. Bergamaschi / 2005 / Preparation and evaluation of zirconia microspheres as inorganic exchanger in adsorption of copper and nickel ions and as catalyst in hydrogen production from bioethanol / Chem. Eng. J 112:153~158

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