[HTML][HTML] Recent advances in nanomechanical and in situ testing techniques: Towards extreme conditions

D Kiener, M Wurmshuber, M Alfreider… - Current Opinion in Solid …, 2023 - Elsevier
Nanoindentation based techniques were significantly enhanced by continuous stiffness
monitoring capabilities. In essence, this allowed to expand from point-wise discrete …

Grain boundary softening from stress assisted helium cavity coalescence in ultrafine-grained tungsten

WS Cunningham, Y Zhang, SL Thomas, O El-Atwani… - Acta Materialia, 2023 - Elsevier
The formation of helium cavities in coarse-grained materials produces hardening
proportional to the number density and size of the cavities and due to the interaction of …

[HTML][HTML] A molecular dynamics study on the influence of vacancies and interstitial helium on mechanical properties of tungsten

CLM Petersson, A Fredriksson, S Melin, A Ahadi… - Journal of Nuclear …, 2023 - Elsevier
Tungsten is a prime candidate material for use in plasma facing components in nuclear
fusion reactors. This would entail weathering extreme conditions, such as high thermal loads …

Stress-induced transition from vacancy annihilation to void nucleation near microcracks

PD Zarnas, BL Boyce, J Qu, R Dingreville - International Journal of Solids …, 2021 - Elsevier
The accumulation of point defects and defect clusters in materials, as seen in irradiated
metals for example, can lead to the formation and growth of voids. Void nucleation is derived …

Non-uniform He bubble formation in W/W2C composite: Experimental and ab-initio study

A Šestan, L Sreekala, S Markelj, M Kelemen… - Acta Materialia, 2022 - Elsevier
Tungsten-tungsten carbide (W/W 2 C) composites are considered as possible structural
materials for future nuclear fusion reactors. Here, we report on the effect of helium (He) …

Helium in Cu-Ag-Fe triphase immiscible nanocomposites: An in situ sequential dual beam TEM study

T Niu, T Sun, Z Shang, Y Zhang, Z He, WY Chen… - Journal of Nuclear …, 2023 - Elsevier
Helium (He) generated during irradiation is notorious for inducing volumetric swelling and
grain boundary embrittlement. It is imperative to design advanced materials with effective …

In-situ TEM bubble to cavity evolution due to annealing post helium and dual ion irradiation in Cu-10Ta and Cu-3Ta

S Srinivasan, E Lang, K Burns, K Hattar… - Materials …, 2023 - Elsevier
Materials have been essential to every major invention in the history of mankind, eg
satellites, nuclear reactors, or space shuttles would not exist without advancements in …

Composition complexity enhances the He-retaining ability of Zr-based MPEAs

JW Zhang, PP Zhou, GA Wang, MH Li, HY Xiao… - Materials …, 2024 - Elsevier
A thorough investigation of the helium (He) bubble growth mechanism in metals is of crucial
importance in proposing alloy design criteria to improve the radiation resistance of nuclear …

Accelerated Kinetic Monte Carlo Method for Simulations of Helium Bubble Formation in Metals

XW Zhou, CSY Hui, DB Robinson, JD Sugar - Journal of Computational …, 2024 - Elsevier
Due to the tritium-to-helium decay, materials containing tritium often suffer from aging by the
formation of internal helium bubbles. A fundamental understanding of how helium bubble …

Study on Upper and Lower Gas Drainage and Prevention and Control Technologies in Deep High-Gas Mines

D Pang, X Wang, Z Yin, X Niu, P Yang… - Archives of Mining …, 2024 - journals.pan.pl
634 upper and lower mining areas was 56.7%, and the proportion of extraction in the
underground mining area was 43.3%. These factors are interdependent and indispensable …