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This thesis is concerned with measuring the permeation of hydrogen and deuterium through fusion reactor materials. The following candidate materials for the first wall and other structures for next step power reactors are studied: the DIN 1.4914 MArtensitic for NET (MANET) steel, the Reduced Activation Martensitic (RAM) F82H (modified) steel, the Batman steel, which are all martensitic in structure, and ceramic SiC SiC composites. The Pd-25%Ag alloy is the candidate material for the International Thermonuclear Experimental Reactor (ITER) permeator for the recovery of tritium and deuterium from the reactor exhaust streams. This thesis has been structured as follows: Chapter 1 introduces metal hydrogen systems at a general level as well as descriptions of the fusion reactor problems. The second chapter details the theoretical aspects of hydrogen-material interactions. In particular, the mathematical models, with analytical solutions used to interpret the experiments, are presented. Chapter 3 describes the experimental facilities used. In chapters 4, 5, 6 and 7 the results for the martensitic steels, for the coatings on steels, for SiC SiC composite and for the Pd-25%Ag alloy, respectively, are reported.

Additional information

Authors: SERRA E, University of Salford, Department of Physics (GB)
Bibliographic Reference: EUR 16471 EN (1996) 172pp., FS
Availability: Available from the Public Relations and Publications Unit, JRC Ispra, I-21020 Ispra (IT), Fax: +39-332-785818
Record Number: 199611532 / Last updated on: 1997-01-27
Original language: en
Available languages: en