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As part of the joint European programme on fusion blanket technology Northern Research Laboratories (NRL) in the UK, SCK/CEN - Mol in Belgium and ECN-Petten in conjunction with JRC-Petten in The Netherlands have worked closely together since 1983 on the development of ceramic breeder materials. This is the fourth annual progress report of the programme, codenamed EXOTIC. Lithium oxides, aluminates, silicates and zirconates have been produced, characterised and irradiated in the HFR-Petten in experiments EXOTIC-1, -2 and -3. EXOTIC-4 is in preparation. For EXOTIC-1 to -3 mainly post irradiation examinations have been carried out : visual inspection, puncturing of closed capsules, tritium retention measurements and material characterisation. Tritium release experiments on small specimens have started. SCK/CEN performed a general study on lithium silicates, in particular on the thermal stability. Finally, the fabrication and the characterisation of the materials to be irradiated in experiment EXOTIC-4 are presented, the main objective being to determine the tritium residence time of the various lithium zirconates.

Additional information

Authors: FLIPOT A J, SCK/CEN-Mol (BE);KENNEDY P, NRL-Springfields (GB);CONRAD A, JRC Petten Estab. (The Netherlands);KWAST H, ECN Petten (NL)
Bibliographic Reference: Report: ECN-214 EN (1989)
Availability: Available from Netherlands Energy Research Foundation ECN, P.O. Box 1, 1755 ZG Petten (NL)
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