Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Influence of termal fluctuations in radiation damage cascade production and defect dynamics in tungsten (POSTER)
Year:2011
Research Areas
  • Engineering
Information
Abstract
clThedetailedstudyofthedeteriorationsufferedbythematerialsofthecomponentsofanuclearfacility,inparticularthoseformingpartofthereactorcore,isatopicofgreatinterestwhichimportancederivesinlargetechnologicalandeconomicimplications.Sincechangesintheatomic-structuralpropertiesofrelevantcomponentsposearisktothesmoothoperationwithclearconsequencesforsecurityandlifeoftheplant,controllingthesefactorsisessentialinanydevelopmentofengineeringdesignandimplementation.Inrecenttimes,tungstenhasbeenproposedasastructuralmaterialbasedonitsgoodresistancetoradiation,butstillneedstobedoneanextensivestudyontheinfluenceoftemperatureonthebehaviorofthismaterialunderradiationdamage.Thisworkaimstocontributeinthisregard.MolecularDynamics(MD)simulationswerecarriedouttodeterminetheinfluenceoftemperaturefluctuationsonradiationdamageproductionandevolutioninTungsten.Wehaveparticularlyfocusedourstudyinthedynamicsofdefectcreation,recombination,anddiffusionproperties.PKAenergiesweresampledinarangefrom5to50KeV.Threedifferenttemperaturescenarioswereanalyzed,fromverylowtemperatures(0-200K),uptohightemperatureconditions(300-500K).Westudiedthecreationofdefects,vacanciesandinterstitials,recombinationrates,diffusionproperties,clusterformation,theirsizeandevolution.SimulationswereperformedusingLammpsandtheZhouEAMpotentialforW.2. APPLICATIONS1
International
Si
Congress
15th International Conference on Emerging Nuclear Energy Systems (ICENES 2011) (May 15-19, 2011)
960
Place
San Francisco, CA, EEUU
Reviewers
Si
ISBN/ISSN
1536-1055
Start Date
15/05/2011
End Date
19/05/2011
From page
0
To page
0
Transactions of fusion science and technology
Participants
  • Autor: S: Courtin
  • Autor: Santiago Cuesta Lopez (UPM)
  • Autor: Jose Manuel Perlado Martin (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
  • Centro o Instituto I+D+i: Instituto de Fusión Nuclear
  • Departamento: Ingeniería Nuclear
S2i 2021 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)