Community Research and Development Information Service - CORDIS

Abstract

To overcome the problems of thermal mismatch and fatigue crack sensitivity under cyclic heat loads of a brazed interface between protection tile (PT) and heat sink (HS) in a conventional divertor plate, an innovative concept based on fibre composite technology is proposed. A bundle of thin fibres, orientated parallel to the thermal gradient, bridges the PT and HS material, giving rise to a hybrid composite in which the same fibres link two matrices together, thermally and mechanically. For the specific application as divertor plate for NET/ITER, copper as HT and carbon or tungsten as PT material are considered. The fibres are respectively carbon or W. This new concept was first analysed by means of finite element modelling. The thermal-mechanical analysis confirms the overall feasibility of the design, allowing optimisation of the geometrical parameters.

Additional information

Authors: MATERA R, JRC Ispra (IT);CRUTZEN Y, JRC Ispra (IT);FARFALETTI-CASALI F, JRC Ispra (IT);DE MEESTER P, Catholic University of Leuven (BE);JANSSENS W, Catholic University of Leuven (BE)
Bibliographic Reference: Paper presented: 4th International Conference on Fusion Reactor Materials, Kyoto (JP), Dec. 4-8, 1989
Availability: Available from (1) as Paper EN 35068 ORA
Record Number: 199010444 / Last updated on: 1994-12-01
Category: PUBLICATION
Original language: en
Available languages: en