Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Thermal and mechanical properties of a novel LBM tungsten
Year:2018
Research Areas
  • Engineering
Information
Abstract
The selection of materials that could resist these extreme operating conditions is a critical issue in the future of nuclear fusion. Fusion plasma leads to heat fluxes to the plasma facing materials of 15-20 MW/m² in the divertor region. Hence, only tungsten presents appropriate resistance to ion and charge-exchange particle erosion in comparison with other materials. However, the mechanical properties of commercially available W are not yet adequate for structural purposes due to its intrinsic brittleness at relatively low temperatures, thus limiting the operating temperatures of the reactor. While several solutions have been proposed for this target, none of them has fulfilled all the requirements. In this context, the goal of this study is the characterization of a ground-breaking W material produced by means of Laser Beam Melting. Therefore, the aim of this investigation is the analysis of the thermos-mechanical behaviour of novel W-based materials for the armour and heat sink of the DEMO divertor, based on the actual design of ITER. For this purpose, flexural and fracture tests were conducted in the temperature range between 25 °C and 1200 °C and under high vacuum atmosphere. Additionally, micromechanical and physical characterization was also performed by means of micro and nanoindentation and High Temperature X-Ray Diffraction respectively.
International
Si
Congress
The Nuclear Materials Conference
960
Place
Seattle, USA
Reviewers
Si
ISBN/ISSN
0000000000
Start Date
14/10/2018
End Date
18/10/2018
From page
1
To page
1
The Nuclear Materials Conference
Participants
  • Autor: Elena Maria Tejado Garrido (UPM)
  • Autor: A. V. Müller
  • Autor: J.H. You
  • Autor: Jose Ignacio Pastor Caño (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Materiales Estructurales Avanzados y Nanomateriales
  • Centro o Instituto I+D+i: CENTRO INVEST. MATERIALES ESTRUCTURALES (CIME)
  • Departamento: Ciencia de Materiales
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