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

ZZ Fu, BC Pan - Materials, 2024 - mdpi.com
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 …

Microscopic mechanism of nucleation and growth of helium bubbles in monovacancy in tungsten: helium regulates the charged states of tungsten atoms

ZZ Fu, JR Wang, BC Pan - Nuclear Fusion, 2023 - iopscience.iop.org
In fusion reactor, tungsten (W) has been selected as a candidate for plasma-facing materials
due to its excellent properties. However, W-PFMs suffer from helium (He) bubbles where He …

The interactions between rhenium and interstitial-type defects in bulk tungsten: a combined study by molecular dynamics and molecular statics simulations

Y Chen, J Fang, L Liu, W Hu, C Jiang, N Gao… - Journal of Nuclear …, 2019 - Elsevier
Tungsten (W) and W-based alloys are the leading candidates for plasma-facing materials
(PFMs) in future fusion reactors. However, the high energy neutrons generated in fusion …

Nanochannel structures in W enhance radiation tolerance

W Qin, F Ren, RP Doerner, G Wei, Y Lv, S Chang… - Acta Materialia, 2018 - Elsevier
Developing high performance plasma facing materials (PFMs) is one of the greatest
challenges for fusion reactors, because PFMs face unprecedented harsh environments …

Molecular-Dynamics Analysis of the Mechanical Behavior of Plasma-Facing Tungsten

A Weerasinghe, E Martinez, BD Wirth… - ACS Applied Materials …, 2023 - ACS Publications
We report a systematic computational analysis of the mechanical behavior of plasma-facing
component (PFC) tungsten focusing on the impact of void and helium (He) bubble defects …

Effect of interstitial hydrogen on the mechanical and thermal properties of tungsten: a first-principles study

M Luo, D Jiang, S Liu, C Ouyang - The Journal of Physical …, 2018 - ACS Publications
Tungsten (W) was considered as one important candidate for the magnetically constrained
plasma first wall materials. The H impurities have a strong influence on the mechanical and …

First-principles calculations of transition metal solute interactions with hydrogen in tungsten

XS Kong, X Wu, CS Liu, QF Fang, QM Hu… - Nuclear …, 2015 - iopscience.iop.org
We have performed systematic first-principles calculations to predict the interaction between
transition metal (TM) solutes and hydrogen in the interstitial site as well as the vacancy in …

Interplay between the Edge Dislocation and Hydrogen in Tungsten at Electronically Excited States

JR Wang, XB Ye, WY Ding, XB Wu… - Advanced Physics …, 2023 - Wiley Online Library
Under the continuous irradiation of high‐density and high‐energy photons from the plasma
core of a fusion reactor, the plasma‐facing materials (PFMs) of tungsten (W) are in …

Molecular dynamics study of the hydrogen and helium interaction in tungsten

XC Li, T Lu, XD Pan, YP Xu, GJ Niu, Q Xu… - Nuclear Instruments and …, 2019 - Elsevier
Tungsten (W) and W alloys are regarded as the most promising candidates for plasma
facing materials (PFMs), which will be widely used in the next generation of fusion reactors …

[HTML][HTML] The mobility of small vacancy/helium complexes in tungsten and its impact on retention in fusion-relevant conditions

D Perez, L Sandoval, S Blondel, BD Wirth… - Scientific reports, 2017 - nature.com
Tungsten is a promising plasma facing material for fusion reactors. Despite many favorable
properties, helium ions incoming from the plasma are known to dramatically affect the …