A new irradiation growth model for Zr-based components of nuclear reactors for the DIONISIO code

Cazado, Mauricio E.; Goldberg, Ezequiel; Togneri, Martín A.; Denis, Anne; Soba, Alejandro

doi:10.1016/j.nucengdes.2020.111009

Cited by 5 publications

(3 citation statements)

References 36 publications

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“…The gap distance gradually decreased due to irradiation growth from the simulation results. The initiation of Pellet Cladding Mechanical Interaction (PCMI) can take place at the end due to burnups of pellets, which will induce additional cladding growth from pellet expansion [29]. The change rule of the gap is consistent with the reactor behavior of PWR SiC cladding fuel rods [30].…”

Section: The Change Of Gap Distancementioning

confidence: 57%

Coupled Thermomechanical Responses of Zirconium Alloy System Claddings under Neutron Irradiation

et al. 2021

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Zirconium (Zr) alloy is a promising fuel cladding material used widely in nuclear reactors. Usually, it is in service for a long time under the effects of neutron radiation with high temperature and high pressure, which results in thermomechanical coupling behavior during the service process. Focusing on the UO2/Zr fuel elements, the macroscopic thermomechanical coupling responses of pure Zr, Zr-Sn, and Zr-Nb binary system alloys, as well as Zr-Sn-Nb ternary system alloy as cladding materials, were studied under neutron irradiation. As a heat source, the thermal conductivity and thermal expansion coefficient models of the UO2 core were established, and an irradiation growth model of a pure Zr and Zr alloy multisystem was built. Based on the user material subroutine (UMAT) with ABAQUS, the current theoretical model was implemented into the finite element framework, and the consequent thermomechanical coupling behavior under irradiation was calculated. The distribution of temperature, the stress field of the fuel cladding, and their evolution over time were analyzed. It was found that the stress and displacement of the cladding were sensitive to alloying elements due to irradiated growth.

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Section: The Change Of Gap Distancementioning

confidence: 57%

Coupled Thermomechanical Responses of Zirconium Alloy System Claddings under Neutron Irradiation

et al. 2021

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“…Zirconium (Zr) is a transition metal element of the titanium family in the periodic table [6]. Zirconia (ZrO2) is one of the important materials used in the industry because of its high melting point, high mechanical properties, low thermal conductivity and high ionic conductivity [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis of Zirconium dioxide nanoparticles by Streptomyces sp. HC1: Characterization and Bioactivity

Ağçeli

HAMMAMCHİ>²,

Cihangir

et al. 2023

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Nanoparticles can be synthesized in many different ways. However, synthesis methods that are except of biosynthesis are very expensive and environmentally hazardous processes. Nanoparticles with various morphologies and shapes are frequently used in biosynthesis studies due to the advantages of their small size. Bio-synthesized nanoparticles gain great importance for reasons such as prevention of environmental pollution and being economical. Zirconium dioxide nanoparticles(ZrO2 NPs) are prominent especially in dental coatings and photocatalytic applications. With this study, for the first time, zirconium dioxide nanoparticles biologically synthesized with Streptomyces sp. HC1 strain were produced. The bio-synthesized ZrO2 NPs were characterized different methods and instruments. Then the nanoparticles were studied their bioactivity especially antimicrobial and antibiofilm.The results confirmed the efficient antimicrobial effect of zirkonium dioxide nanoparticles as well as efficient antibiofilm effect. The synthesis of ZrO2 nanoparticles from Streptomyces sp. HC1 by biological synthesis and determination of the bioactivity of these nanoparticles were reported for the first time in this work.

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“…Zirconium (Zr) is classified as a transition metal element (d-block) in the titanium family (group IV) with the atomic number 40. Zr does not basically capture neutrons, offering a potential metallic cladding for the fuel rods in the nuclear reactors (Cazado et al 2021 ). Zirconium dioxide (ZrO 2 ) or zirconia is one of the highly stable oxides, created by thermalizing zirconium compounds (Hassan and Jalil 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of ZrO2 nanoparticles and nanocomposites for biomedical and environmental applications: a review

et al. 2022

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Pollution and diseases such as the coronavirus pandemic (COVID-19) are major issues that may be solved partly by nanotechnology. Here we review the synthesis of ZrO 2 nanoparticles and their nanocomposites using compounds from bacteria, fungi, microalgae, and plants. For instance, bacteria, microalgae, and fungi secret bioactive metabolites such as fucoidans, digestive enzymes, and proteins, while plant tissues are rich in reducing sugars, polyphenols, flavonoids, saponins, and amino acids. These compounds allow reducing, capping, chelating, and stabilizing during the transformation of Zr 4+ into ZrO 2 nanoparticles. Green ZrO 2 nanoparticles display unique properties such as a nanoscale size of 5–50 nm, diverse morphologies, e.g. nanospheres, nanorods and nanochains, and wide bandgap energy of 3.7–5.5 eV. Their high stability and biocompatibility are suitable biomedical and environmental applications, such as pathogen and cancer inactivation, and pollutant removal. Emerging applications of green ZrO 2 -based nanocomposites include water treatment, catalytic reduction, nanoelectronic devices, and anti-biofilms.

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A new irradiation growth model for Zr-based components of nuclear reactors for the DIONISIO code

Cited by 5 publications

References 36 publications

Coupled Thermomechanical Responses of Zirconium Alloy System Claddings under Neutron Irradiation

Coupled Thermomechanical Responses of Zirconium Alloy System Claddings under Neutron Irradiation

Biosynthesis of Zirconium dioxide nanoparticles by Streptomyces sp. HC1: Characterization and Bioactivity

Green synthesis of ZrO2 nanoparticles and nanocomposites for biomedical and environmental applications: a review

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