(Invited) Plasma Facing Materials for Future Fusion Reactors Under Extreme Loading Conditions

2016 ◽  
Keyword(s):  
Fusion Reactors ◽  
Loading Conditions ◽  
Plasma Facing Materials

Bonding and Interfaces and their Thermo-Mechanical Performance on the Example of Plasma Facing Divertor Components for Thermo-Nuclear Fusion Reactors

2008 ◽  
Vol 59 ◽  
pp. 31-35
Author(s):  
Arno Plankensteiner ◽  
Bernhard Tabernig
Keyword(s):  
Heat Flux ◽  
Finite Element ◽  
Fracture Mechanics ◽  
Nuclear Fusion ◽  
High Heat ◽  
Fusion Reactors ◽  
High Heat Flux ◽  
Loading Conditions ◽  
Micro Scale ◽  
Macro Scale

The optimization of CFC/Cu-interfaces for plasma facing divertor components in thermo-nuclear fusion reactors is proposed and demonstrated via an integrative numerical-experimental approach mainly comprising a macro-scale to micro-scale finite element modeling technique together with fracture mechanics tests. Results obtained by finite element analyses of real-scale CFC flat tile divertor components under high heat flux loading conditions are verified by the findings of tests in an ion beam high heat flux facility. From the macro-scale FE models of the full component the loading conditions are derived for micro-scale FE models that incorporate principal details of the micro-structured CFC/Cu-interface thus allowing to capture explicitly locally acting dissipative mechanisms which in turn at the macro-scale in fracture mechanics experiments increase the fracture toughness of the CFC/Cu-interface.

scholarly journals Methodology of the Experiments to Study Lithium CPS Interaction with Deuterium Under Conditions of Reactor Irradiation

2019 ◽  
Vol 21 (2) ◽  
pp. 107 ◽  
Author(s):  
Yu. Ponkratov ◽  
N. Nikitenkov ◽  
I. Tazhibayeva ◽  
Zh. Zaurbekova ◽  
V. Gnyrya ◽  
...  
Keyword(s):  
Gamma Radiation ◽  
Atomic Number ◽  
Neutron Irradiation ◽  
Liquid Metals ◽  
Fusion Reactors ◽  
Vessel Element ◽  
Reactor Irradiation ◽  
Design Development ◽  
Preliminary Results ◽  
Plasma Facing Materials

Problems of plasma-facing materials degradation and in-vessel element destructions, tritium accumulation and plasma pollution can be overcome by the use of liquid metals with low atomic number. The best candidate as a material for divertor receiving plates and other in-vessel devices is lithium. One of the problems associated with the use of such lithium systems in the fusion reactors is to determine the parameters of the working gases interaction with plasma facing surfaces under conditions simulating real operation, i.e. under conditions of neutron and gamma radiation. This paper describes a technique of the reactor experiments to study lithium capillary-porous systems (CPS) interaction with deuterium under neutron irradiation. The neutron-physical and thermophysical calculations were the basis for the design development and further manufacture of a unique irradiation ampoule device with a lithium CPS sample. Several experiments were performed to calibrate the deuterium fluxes through experimental cell with lithium CPS; and preliminary results of these experiments were obtained.

scholarly journals Novel Approach to Plasma Facing Materials in Nuclear Fusion Reactors

2008 ◽  
Author(s):  
V. Livramento ◽  
J. B. Correia ◽  
D. Nunes ◽  
P. A. Carvalho ◽  
H. Fernandes ◽  
...  
Keyword(s):  
Nuclear Fusion ◽  
Fusion Reactors ◽  
Novel Approach ◽  
Plasma Facing Materials

510 Study of a joint of plasma facing materials for fusion reactors

2001 ◽  
Vol 2001 (0) ◽  
pp. 125-126
Author(s):  
Kenji NAKAGAWA ◽  
Yoshio IMAMURA ◽  
Akira KURUMADA ◽  
Rieko MUTO ◽  
Junichiro YAMAMOTO
Keyword(s):  
Fusion Reactors ◽  
Plasma Facing Materials
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