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

Abstract:

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.

• Periodical: Advanced Materials Research (Volume 59)
• Pages: 31-35
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.59.31
• Online since: December 2008
• Authors: Arno Plankensteiner, Bernhard Tabernig
• Keywords: Active Metal Casting, Bonding, CFC, Crack Resistance Curve, CuCrZr, Electron Beam Weld (EBW), Finite Element Analysis (FEA), Fracture Mechanic, High Heat Flux Testing, Hot Isostatic Pressing (HIP), Interface, Plasma Facing Component

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