Recycling of isotopically modified molybdenum from irradiated CerMet nuclear fuel: part 1—concept design and assessment

Mareš, Kamil Vavřinec; John, Jan

doi:10.1007/s10967-019-06456-2

Cited by 5 publications

(1 citation statement)

References 16 publications

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“…One of the areas of research in the field of searching for and studying the properties of new types of materials based on oxide matrices is the creation of composite structures having several types of phases-the so-called cermets-which have a set of properties of components used in their production as well as increased resistance to external influences [24][25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Research of Structural, Strength and Thermal Properties of ZrO2—CeO2 Ceramics Doped with Yttrium

et al. 2022

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In this work, using a mechanochemical solid-phase synthesis method, ZrO2—CeO2 ceramics doped with yttrium were obtained, which have great prospects for use as a basis for dispersed nuclear fuel materials or inert nuclear fuel matrices. The purpose of this work was to study the formation of the ZrO2—CeO2 phase composition, depending on the concentration of yttrium dopant, as well as to study their structural and strength properties. The relevance of this study is in obtaining new data on the properties of composite ceramics based on oxides having a cermet structure, as well as the effect of doping with yttrium on increasing the resistance of ceramics to deformation and thermal properties. During the studies, the dynamics of the phase transformations depending on the concentration of the dopant, as well as changes in the structural characteristics and dislocation density, were established. It was found that at a dopant concentration of 0.25 mol, the main phase in the structure was Ce3ZrO8–triclinic P1 (1), the formation of which led to an increase in the mechanical and strength properties of the ceramics as well as a 1.5-fold increase in the thermal conductivity coefficient.

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