Latest results of EUROfusion Plasma-Facing Components research in the areas of power loading, material erosion and fuel retention

2021 ◽  
Author(s):  
Michael Reinhart ◽  
Sebastijan Brezinsek ◽  
Andreas Kirschner ◽  
Jan Willem Coenen ◽  
Thomas Schwarz-Selinger ◽  
...  
Keyword(s):  
Plasma Facing Components ◽  
Power Loading ◽  
Material Erosion

Coatings for Plasma-Facing Components of Nuclear Fusion Devices

1998 ◽  
Author(s):  
W. Mallener ◽  
K.H. Rauwald ◽  
R. Duwe
Keyword(s):  
Electron Beam ◽  
Relative Density ◽  
Thermal Shock ◽  
Decisive Role ◽  
Chamber Pressure ◽  
Powder Size ◽  
Erosion Rates ◽  
Plasma Facing Components ◽  
Spraying Parameters ◽  
Material Erosion

Abstract Tungsten coatings on copper substrates were produced and subjected to thermal shock loads in an electron beam device. The aim was to minimize the erosion rates thus caused. They are basically dependent on the level and type of porosity. Moreover, material erosion can also be directly influenced by the spraying parameters in coatings with the same relative density. In this connection, the chamber pressure, powder size and spraying distance play a decisive role.

Calibration-free laser-based spectroscopic study of Sn-based alloys

2021 ◽  
Author(s):  
S. Atikukke ◽  
Alicia Marín Roldán ◽  
Vishal Dwivedi ◽  
Matej Veis ◽  
Pavel Veis
Keyword(s):  
Liquid Metals ◽  
Experimental Conditions ◽  
Term Operation ◽  
Breakdown Spectroscopy ◽  
Plasma Facing Components ◽  
Laser Induced Breakdown ◽  
Material Erosion ◽  
Short And Long Term ◽  
Calibration Free

Abstract The elemental quantification of liquid metal divertor (LMD) surface is important for understanding the material erosion, migration, re-deposition, and fuel retention in Plasma-Facing Components (PFCs). Currently, LMD are attractive candidates for the short- and long-term operation of fusion devices like DEMO. Liquid metals can provide self-cooling, self-replenishing plasma-facing surfaces requiring very little upkeep. In a previous work, we studied Li and LiSn layers deposited on attachment screws in the COMPASS tokamak by means of CF-LIBS. Several problems were encountered related to the detection of Sn in LiSn. Thus, in the present work, we are optimizing the experimental conditions for the detection of Sn I-II and Pb I-II in Pb-containing Sn-based alloys, performing the quantification of Pb in traces and in bulk quantities using Calibration-Free Laser-Induced Breakdown Spectroscopy (CF-LIBS) approach.

scholarly journals Design and Analysis of High Heat Flux Plasma-Facing Components for NSTX Upgrade

2021 ◽  
pp. 1-7
Author(s):  
Andrei Khodak ◽  
Douglas Loesser ◽  
Michael Messineo ◽  
Arthur Brooks ◽  
Michael Jaworski ◽  
...  
Keyword(s):  
Heat Flux ◽  
High Heat ◽  
High Heat Flux ◽  
Plasma Facing Components

On a possibility of explosive material erosion under conditions of ITER disruption event

1996 ◽  
Vol 233-237 ◽  
pp. 697-700 ◽  
Author(s):  
A.V. Burdakov ◽  
M.N. Chagin ◽  
V.V. Filippov ◽  
V.S. Koidan ◽  
K.I. Mekler ◽  
...  
Keyword(s):  
Explosive Material ◽  
Material Erosion ◽  
Disruption Event

scholarly journals Moving-Surface Plasma-Facing Components for Particle Control in Steady State Magnetic Fusion Devices

2004 ◽  
Vol 45 (1) ◽  
pp. 60-64 ◽  
Author(s):  
Yoshi Hirooka ◽  
Hoju Fukushima ◽  
Noriyasu Ohno ◽  
Shuichi Takamura ◽  
Masahiro Nishikawa
Keyword(s):  
Steady State ◽  
Magnetic Fusion ◽  
Surface Plasma ◽  
Moving Surface ◽  
Plasma Facing Components
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