Community Research and Development Information Service - CORDIS

Abstract

Carbon-carbon fibre composites (CFCs) have a unique combination of high conductivity, low Z and resistance to damage due to high heat loads. Given the demanding environmental requirements in the ITER divertor, specially developed CFCs are required as plasma facing materials. However, the manufacture of the plasma facing components, copper tubes surrounded by the CFC, and their inspection also places demands on the thermo-mechanical properties of the CFCs and their uniformity. This paper will describe, in detail, these demands and the work being undertaken to identify the appropriate thermo-mechanical properties of the CFC, since the three main demands, stability under ITER conditions, manufacturing ability of the plasma facing components and inspect-ability are not necessarily complementary. Due to the nature of CFC there are significant variations in its properties; these variations need to be limited, taking also into account cost and delivery requirements. The aim of the study undertaken is to identify the necessary CFC material properties, define their allowed range and select suitable CFC grades of material in 2008 for the European contribution to ITER.

Additional information

Authors: PEACOCK A T, EFDA Close Support Unit, Garching (DE);MEROLA M, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);PICK M A, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);TIVEY R, ITER IT, Garching Joint Work Site, Garching (DE)
Bibliographic Reference: An article published in: Physica Scripta T128 (2007), pp. 23-28
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://dx.doi.org/10.1088/0031-8949/2007/T128/005
Record Number: 200719141 / Last updated on: 2007-04-11
Category: PUBLICATION
Original language: en
Available languages: en