Temperature dependence of underdense nanostructure formation in tungsten under helium irradiation

Valles, G.; Martin-Bragado, I.; Nordlund, K.; Lasa, A.; Björkas, C.; Safi, E.; Perlado, J. M.; Rivera, A.

doi:10.1016/j.jnucmat.2017.04.021

Title: Temperature dependence of underdense nanostructure formation in tungsten under helium irradiation

Abstract

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 window 900–2000 K. Furthermore, using object kinetic Monte Carlo simulations (pseudo-3D simulations) parameterized from first principles, we show that this temperature dependence can be understood based on He and point defect clustering, cluster growth, and detrapping reactions. At low temperatures (<900 K), fuzz does not grow because almost all He is trapped in very small He-vacancy clusters. At high temperatures (>2300 K), all He is detrapped from clusters, preventing the formation of the large clusters that lead to fuzz growth in the intermediate temperature range.

Authors:

Valles, G. ^[1]; Martin-Bragado, I. ^[2]; Nordlund, K. ^[3];

^[4]; Björkas, C. ^[5]; Safi, E. ^[5]; Perlado, J. M. ^[1]; Rivera, A. ^[1]

Univ. Politecnica de Madrid, Madrid (Spain)
Univ. Catolica de Murcia, Murcia (Spain)
Univ. of Helsinki, Helsinki (Finland); National Research Nuclear Univ. MEPhI, Moscow (Russia)
Univ. of Helsinki, Helsinki (Finland); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Univ. of Helsinki, Helsinki (Finland)

Publication Date:: Wed Apr 19 00:00:00 EDT 2017

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1376343

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Nuclear Materials

Additional Journal Information:: Journal Volume: 490; Journal Issue: C; Journal ID: ISSN 0022-3115

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; Tungsten; Helium irradiation; Fuzz nanostructures; OKMC simulations; Temperature

Citation Formats


                    Valles, G., Martin-Bragado, I., Nordlund, K., Lasa, A., Björkas, C., Safi, E., Perlado, J. M., and Rivera, A. Temperature dependence of underdense nanostructure formation in tungsten under helium irradiation.  United States: N. p., 2017. 
Web.  doi:10.1016/j.jnucmat.2017.04.021.

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                    Valles, G., Martin-Bragado, I., Nordlund, K., Lasa, A., Björkas, C., Safi, E., Perlado, J. M., & Rivera, A. Temperature dependence of underdense nanostructure formation in tungsten under helium irradiation.  United States.  https://doi.org/10.1016/j.jnucmat.2017.04.021

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                    Valles, G., Martin-Bragado, I., Nordlund, K., Lasa, A., Björkas, C., Safi, E., Perlado, J. M., and Rivera, A. Wed .  
"Temperature dependence of underdense nanostructure formation in tungsten under helium irradiation".  United States.  https://doi.org/10.1016/j.jnucmat.2017.04.021.  https://www.osti.gov/servlets/purl/1376343.

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@article{osti_1376343,

  title        = {Temperature dependence of underdense nanostructure formation in tungsten under helium irradiation},

  author       = {Valles, G. and Martin-Bragado, I. and Nordlund, K. and Lasa, A. and Björkas, C. and Safi, E. and Perlado, J. M. and Rivera, A.},

  abstractNote = {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 window 900–2000 K. Furthermore, using object kinetic Monte Carlo simulations (pseudo-3D simulations) parameterized from first principles, we show that this temperature dependence can be understood based on He and point defect clustering, cluster growth, and detrapping reactions. At low temperatures (<900 K), fuzz does not grow because almost all He is trapped in very small He-vacancy clusters. At high temperatures (>2300 K), all He is detrapped from clusters, preventing the formation of the large clusters that lead to fuzz growth in the intermediate temperature range.},

  doi          = {10.1016/j.jnucmat.2017.04.021},

  journal      = {Journal of Nuclear Materials},

  number       = C,

  volume       = 490,

  place        = {United States},

  year         = {Wed Apr 19 00:00:00 EDT 2017},

  month        = {Wed Apr 19 00:00:00 EDT 2017}

}

Copy to clipboard

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Works referencing / citing this record:

Fabrication of photocatalytically active vanadium oxide nanostructures via plasma route
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Materials, Vol. 12, Issue 16
DOI: 10.3390/ma12162500

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Title: Temperature dependence of underdense nanostructure formation in tungsten under helium irradiation

Abstract

Citation Formats

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Assessment of tungsten for use in the ITER plasma facing components
journal, October 1998

Materials for the plasma-facing components of fusion reactors
journal, August 2004

Tritium inventory in ITER plasma-facing materials and tritium removal procedures
journal, August 2008

Helium induced nanoscopic morphology on tungsten under fusion relevant plasma conditions
journal, January 2008

Tungsten nano-tendril growth in the Alcator C-Mod divertor
journal, March 2012

Nanostructuring of molybdenum and tungsten surfaces by low-energy helium ions
journal, July 2012

Nanostructuring of Palladium with Low-Temperature Helium Plasma
journal, November 2015

The effects of high fluence mixed-species (deuterium, helium, beryllium) plasma interactions with tungsten
journal, June 2009

Tungsten ‘fuzz’ growth re-examined: the dependence on ion fluence in non-erosive and erosive helium plasma
journal, August 2015

Surface modification at tungsten and tungsten coated graphite due to low energy and high fluence plasma and laser pulse irradiation
journal, June 2007

Sub-ms laser pulse irradiation on tungsten target damaged by exposure to helium plasma
journal, September 2007

In situ reflectivity of tungsten mirrors under helium plasma exposure
journal, June 2009

Visualized Blow-off from Helium Irradiated Tungsten in Response to ELM-like Heat Load
journal, January 2009

Tungsten nanostructure formation in a magnetron sputtering device
journal, October 2014

Nanostructure formation on tungsten exposed to low-pressure rf helium plasmas: A study of ion energy threshold and early stage growth
journal, August 2011

Formation of helium induced nanostructure ‘fuzz’ on various tungsten grades
journal, September 2010

Formation process of tungsten nanostructure by the exposure to helium plasma under fusion relevant plasma conditions
journal, August 2009

Comparison of tungsten nano-tendrils grown in Alcator C-Mod and linear plasma devices
journal, July 2013

TEM observation of the growth process of helium nanobubbles on tungsten: Nanostructure formation mechanism
journal, November 2011

MD simulations of onset of tungsten fuzz formation under helium irradiation
journal, May 2013

Loop punching and bubble rupture causing surface roughening —A model for W fuzz growth
journal, January 2014

Molecular dynamics and Monte Carlo hybrid simulation for fuzzy tungsten nanostructure formation
journal, June 2015

Hybrid simulation research on formation mechanism of tungsten nanostructure induced by helium plasma irradiation
journal, August 2015

On helium cluster dynamics in tungsten plasma facing components of fusion devices
journal, May 2014

Crystal orientation effects on helium ion depth distributions and adatom formation processes in plasma-facing tungsten
journal, October 2014

Challenges and opportunities of modeling plasma–surface interactions in tungsten using high-performance computing
journal, August 2015

He cluster dynamics in fusion related plasma facing materials
journal, June 2015

Spatially dependent cluster dynamics model of He plasma surface interaction in tungsten for fusion relevant conditions
journal, December 2014

Helium segregation on surfaces of plasma-exposed tungsten
journal, January 2016

MMonCa: An Object Kinetic Monte Carlo simulator for damage irradiation evolution and defect diffusion
journal, December 2013

The influence of high grain boundary density on helium retention in tungsten
journal, February 2015

Migration Energy of He in W Revisited by Ab Initio Calculations
journal, November 2006

Microstructural evolution of irradiated tungsten: Ab initio parameterisation of an OKMC model
journal, August 2010

Modelling radiation damage and He production in tungsten
journal, December 2011

Tungsten surface evolution by helium bubble nucleation, growth and rupture
journal, June 2013

The behavior of small helium clusters near free surfaces in tungsten
journal, November 2014

Modelling self trapping and trap mutation in tungsten using DFT and Molecular Dynamics with an empirical potential based on DFT
journal, December 2014

Diffusion and transformation kinetics of small helium clusters in bulk tungsten
journal, July 2014

Coherent displacement of atoms during ion irradiation
journal, March 1999

Dynamics of small mobile helium clusters near tungsten surfaces
journal, August 2014

Molecular-dynamics analysis of mobile helium cluster reactions near surfaces of plasma-exposed tungsten
journal, October 2015

First-Principles Investigation on Trapping of Multiple Helium Atoms within a Tungsten Monovacancy
journal, January 2013

First-principles investigation of possible clustering of noble gas atoms implanted in bcc tungsten
journal, November 2013

Helium-vacancy interaction in tungsten
journal, June 1993

Interatomic potentials for simulation of He bubble formation in W
journal, January 2013

Direct time-resolved observation of tungsten nanostructured growth due to helium plasma exposure
journal, March 2015

Molecular dynamics simulations of helium cluster formation in tungsten
journal, March 2006

SRIM – The stopping and range of ions in matter (2010)
journal, June 2010

A multiscale approach to defect evolution in tungsten under helium irradiation
journal, June 2015

Effect of ion flux on helium retention in helium-irradiated tungsten
journal, May 2013

Measuring helium bubble diameter distributions in tungsten with grazing incidence small angle x-ray scattering (GISAXS)
journal, January 2016

GISAXS modelling of helium-induced nano-bubble formation in tungsten and comparison with TEM
journal, May 2016

Self-trapping of helium in metals
journal, November 1981

Fabrication of photocatalytically active vanadium oxide nanostructures via plasma route
journal, April 2018

An Overview of Recent Standard and Accelerated Molecular Dynamics Simulations of Helium Behavior in Tungsten
journal, August 2019

An Overview of Recent Standard and Accelerated Molecular Dynamics Simulations of Helium Behavior in Tungsten
journal, August 2019