Community Research and Development Information Service - CORDIS

Abstract

Future fusion experiments will rely on tungsten armour tile for their plasma facing components. In order to sustain steady state operation, the components need to be cooled through an attachment to a heat sink. All current reference concepts rely on contact bonds, unfavourable for long-term application (high temperature service, cycle fatigue, thermal shocks). Three routes toward the development of thick tungsten bonds are presented here, namely functionally graded tungsten copper assembly, electron beam welding of tungsten, and coating processes. All present favourable prospects, and tend to indicate that a thick bond is possible with tungsten. Dedicated programs as well as industrial implication are however required if such concepts are to be used actually for the fabrication of large components series.

Additional information

Authors: GRISOLIA C, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);CHAPPUIS P, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);MISSIAEN J M, LTPCM, UMR CNRS 5614, Université Joseph Fourier, Grenoble (FR);OZER O, LTPCM, UMR CNRS 5614, Université Joseph Fourier, Grenoble (FR);BRUSTOLIN P, Institut de Soudure, YUTZ (FR);RUSET C, NILPRP, Magurele-Bucharest (RO);LUNGU C P, NILPRP, Magurele-Bucharest (RO);DOMINICY C, CP2M, Université d�Aix Marseille III, Marseille (FR);MAIER H, Max-Planck-Institut für Plasmaphysik, Euratom Association, Garching (DE);PIAZZA G, EFDA JET, Close Support Unit, Culham Science Centre (UK);MITTEAU R, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);DUROCHER A, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);COURTOIS X, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR)
Bibliographic Reference: An article published in: Fusion Engineering and Design (2007), online edition
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://www.sciencedirect.com/science/journal/09203796
Record Number: 200719035 / Last updated on: 2007-04-02
Category: PUBLICATION
Original language: en
Available languages: en