Behavior of tungsten under irradiation and plasma interaction
M Rieth, R Doerner, A Hasegawa, Y Ueda… - Journal of Nuclear …, 2019 - Elsevier
In 1959 the Journal of Nuclear Materials (JNM) was founded and is now celebrating its
Diamond Anniversary year. The present paper is part of a series in which single JNM …
Diamond Anniversary year. The present paper is part of a series in which single JNM …
Helium, hydrogen, and fuzz in plasma-facing materials
KD Hammond - Materials Research Express, 2017 - iopscience.iop.org
Tungsten, the primary material under consideration as the divertor material in magnetic-
confinement nuclear fusion reactors, has been known for the last decade to form'fuzz'—a …
confinement nuclear fusion reactors, has been known for the last decade to form'fuzz'—a …
Mechanical properties and microstructural change of W–Y2O3 alloy under helium irradiation
A wet-chemical method combined with spark plasma sintering was used to prepare a W–
Y2O3 alloy. High-temperature tensile tests and nano-indentation microhardness tests were …
Y2O3 alloy. High-temperature tensile tests and nano-indentation microhardness tests were …
Modeling microstructural evolution in irradiated materials with cluster dynamics methods: a review
As both the design of material systems for nuclear energy applications and the number of
reactor designs being proposed increase the need for material models predicting the …
reactor designs being proposed increase the need for material models predicting the …
The mobility of small vacancy/helium complexes in tungsten and its impact on retention in fusion-relevant conditions
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 …
properties, helium ions incoming from the plasma are known to dramatically affect the …
Growth of multifractal tungsten nanostructure by He bubble induced directional swelling
Helium (He) plasma irradiation to tungsten (W) leads to morphology changes in nanometer
scale by the formation and growth of He bubbles. Initially pinholes and protrusions are …
scale by the formation and growth of He bubbles. Initially pinholes and protrusions are …
Helium segregation on surfaces of plasma-exposed tungsten
D Maroudas, S Blondel, L Hu… - Journal of Physics …, 2016 - iopscience.iop.org
We report a hierarchical multi-scale modeling study of implanted helium segregation on
surfaces of tungsten, considered as a plasma facing component in nuclear fusion reactors …
surfaces of tungsten, considered as a plasma facing component in nuclear fusion reactors …
Helium flux effects on bubble growth and surface morphology in plasma-facing tungsten from large-scale molecular dynamics simulations
KD Hammond, IV Naeger, W Widanagamaachchi… - Nuclear …, 2019 - iopscience.iop.org
We investigate helium flux effects on helium transport and surface evolution in plasma-
facing tungsten using molecular dynamics. The simulations span two orders of magnitude …
facing tungsten using molecular dynamics. The simulations span two orders of magnitude …
Temperature dependence of underdense nanostructure formation in tungsten under helium irradiation
Recently, tungsten has been found to form a highly underdense nanostructured morphology
(“W fuzz”) when bombarded by an intense flux of He ions, but only in the temperature …
(“W fuzz”) when bombarded by an intense flux of He ions, but only in the temperature …
Atomistic modeling of growth and coalescence of helium nano-bubbles in tungsten
RD Smirnov, SI Krasheninnikov, J Guterl - Journal of Nuclear Materials, 2015 - Elsevier
The mechanisms of growth and coalescence of helium nano-bubbles in tungsten are
investigated using molecular dynamics simulations. It is shown that crystal symmetries and …
investigated using molecular dynamics simulations. It is shown that crystal symmetries and …