Recent progress of radiation response in nanostructured tungsten for nuclear application

Xu, Hang; He, Lanli; Pei, Yongfeng; Jiang, Changzhong; Li, Wenqing; Xiao, Xin

doi:10.1007/s42864-021-00075-9

Cited by 27 publications

(8 citation statements)

References 119 publications

(135 reference statements)

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“…Due to its peculiar properties, including its very high hardness, tungsten is irreplaceable in several industrial and military applications [28]. Tungsten-based materials are envisaged in future nuclear reactors to withstand the high energies required and the repeated impact of significant thermal loads [29]. Tungsten is crucial for emerging technologies and is of increasing major economic importance [30].…”

Section: Production and Uses Of Tungstenmentioning

confidence: 99%

The Dynamics of Tungsten in Soil: An Overview

Petruzzelli¹,

Pedron²

2021

Environments

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The increasing use of tungsten in the production of green energy in the aerospace and military industries, and in many other hi-tech applications, may increase the content of this element in soil. This overview examines some aspects of the behavior of tungsten in soil, such as the importance of characteristics of soils in relation to bioavailability processes, the chemical approaches to evaluate tungsten mobility in the soil environment and the importance of adsorption and desorption processes. Tungsten behavior depends on soil properties of which the most important is soil pH, which determines the solubility and polymerization of tungstate ions and the characteristics of the adsorbing soil surfaces. During the adsorption and desorption of tungsten, iron, and aluminum oxides, and hydroxides play a key role as they are the most important adsorbing surfaces for tungsten. The behavior of tungsten compounds in the soil determines the transfer of this element in plants and therefore in the food chain. Despite the growing importance of tungsten in everyday life, environmental regulations concerning soil do not take this element into consideration. The purpose of this review is also to provide some basic information that could be useful when considering tungsten in environmental legislation.

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Section: Production and Uses Of Tungstenmentioning

confidence: 99%

The Dynamics of Tungsten in Soil: An Overview

Petruzzelli¹,

Pedron²

2021

Environments

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“…As the number of He atoms increases, multiple He atoms are trapped by a single vacancy, promoting the nucleation and growth of He bubbles [7]. In cases where these processes occur near the surface region of the W-PFM, nanosized fuzzy structures may form on the surface [9][10][11][12]. Furthermore, the scenario involving divacancy (V2) has also been investigated.…”

Section: Introductionmentioning

confidence: 99%

Electronically Temperature-Dependent Interplay between He and Trivacancy in Tungsten Plasma-Facing Materials

Fu,

Pan

2024

Materials

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Both microvoids and helium (He) impurities are widely present in tungsten (W) plasma-facing materials (PFMs), where the interaction between microvoids and He atoms has led to the intriguing development of microvoids. In this paper, we comprehensively investigated the interaction between He atoms and trivacancy (V3), a fundamental microvoid in W-PFMs, at the level of tight-binding theory. Our study showed that He atoms can catalyze the decomposition of the original V3 or facilitate its transformation into another V3 variant. We propose that a He atom near the V3 defect induces significant changes in the distribution of d-electron charges within the W atoms lining the inner wall of the V3 defect, making the W atom nearest to this He atom cationic and the other W atoms anionic. The attractive interaction between them promotes the decomposition and deformation of V3. As electronic excitation increases, the ionization of W atoms on the V3 wall gradually intensifies, thereby enhancing the cationic characteristics of the W atoms closest to the He atom. This process also prompts other W atoms to shift from anions to cations, leading to a transition in the electrostatic interactions between them from attraction to repulsion. This transformation, driven by electronic excitation, plays a significant inhibitory role in the decomposition and deformation of V3.

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“…In addition, W is characterized by high susceptibility to radiation embrittlement [4,5], which also does not contribute to maintaining the integrity of the material.…”

Section: Introductionmentioning

confidence: 99%

PHYSICAL MODEL OF W AND Ti COMPOUND DURING HOT VACUUM ROLLING IN THE SOLID PHASE

Andrieieva¹,

Ткаченко²

2023

Problems of Atomic Science and Technology

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The paper considers alternative methods for protecting metal surfaces from corrosion-erosion destruction (CED), based on galvanization or on the use of an oxide film. Their advantages and disadvantages are noted. For the manufacture of CED-resistant tungsten targets, which are used in the subcritical assembly created at the NSC KIPT, it is proposed to use the method of vacuum rolling of W and Ti. A layer of Ti serves as a protective coating. To describe the process of combining these metals, a model description is proposed, which is based on the use of the Rayleigh-Taylor dissipative instability theory (DRTI). An estimate of the values of the parameters of a binary metal system subjected to DRTI is given. The obtained characteristic bonding time of dissimilar metals corresponds to that observed in experiments.

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Recent progress of radiation response in nanostructured tungsten for nuclear application

Cited by 27 publications

References 119 publications

The Dynamics of Tungsten in Soil: An Overview

The Dynamics of Tungsten in Soil: An Overview

Electronically Temperature-Dependent Interplay between He and Trivacancy in Tungsten Plasma-Facing Materials

PHYSICAL MODEL OF W AND Ti COMPOUND DURING HOT VACUUM ROLLING IN THE SOLID PHASE

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