利用纳米PuO2粉末制备均匀U0.89Pu0.11O2混合氧化物

IF 2.8 2区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Nuclear Materials Pub Date : 2025-05-21 DOI:10.1016/j.jnucmat.2025.155915

Jacobus Boshoven , Abibatou Ndiaye , Bertrand Morel , Marco Cologna , Jean-François Vigier , Ramon Carlos Marquez , Rudy J.M. Konings , Karin Popa

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引用次数: 0

摘要

结果表明，将工业UO2与纳米晶PuO2粉末共混烧结，得到了均匀的单相混合氧化物；而在相同的条件下，由草酸盐沉淀得到的由片状组成的常规PuO2粉末，则产生两相混合氧化物。使用纳米PuO2可以获得更大的最终晶粒尺寸。

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Homogeneous U0.89Pu0.11O2 mixed oxide by use of PuO2 nanopowders

We show that a homogeneous single-phase mixed oxide is obtained by blending and sintering commercial UO₂ and nanocrystalline PuO₂ powder; whereas, under the same conditions, conventional PuO₂ powder obtained from oxalate precipitation and composed of platelets, yields two-phase mixed oxide. The use of nanometric PuO₂ results in a larger final grain size.

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来源期刊

Journal of Nuclear Materials 工程技术-材料科学：综合

CiteScore

5.70

自引率

25.80%

发文量

601

审稿时长

63 days

期刊介绍： The Journal of Nuclear Materials publishes high quality papers in materials research for nuclear applications, primarily fission reactors, fusion reactors, and similar environments including radiation areas of charged particle accelerators. Both original research and critical review papers covering experimental, theoretical, and computational aspects of either fundamental or applied nature are welcome. The breadth of the field is such that a wide range of processes and properties in the field of materials science and engineering is of interest to the readership, spanning atom-scale processes, microstructures, thermodynamics, mechanical properties, physical properties, and corrosion, for example. Topics covered by JNM Fission reactor materials, including fuels, cladding, core structures, pressure vessels, coolant interactions with materials, moderator and control components, fission product behavior. Materials aspects of the entire fuel cycle. Materials aspects of the actinides and their compounds. Performance of nuclear waste materials; materials aspects of the immobilization of wastes. Fusion reactor materials, including first walls, blankets, insulators and magnets. Neutron and charged particle radiation effects in materials, including defects, transmutations, microstructures, phase changes and macroscopic properties. Interaction of plasmas, ion beams, electron beams and electromagnetic radiation with materials relevant to nuclear systems.