Tritium release properties of neutron-irradiated Be12Ti
Be12Ti has a high melting point and good chemical stability and is a promising advanced material for the neutron multiplier of the DEMO reactor that requires temperatures higher than 600 deg C in a blanket. To evaluate the tritium inventory in the breeding blanket, a tritium release experiment of ne...
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| Published in: | Journal of nuclear materials Vol. 307-311; pp. 653 - 656 |
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| Main Authors: | , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
01-12-2002
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| Online Access: | Get full text |
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| Summary: | Be12Ti has a high melting point and good chemical stability and is a promising advanced material for the neutron multiplier of the DEMO reactor that requires temperatures higher than 600 deg C in a blanket. To evaluate the tritium inventory in the breeding blanket, a tritium release experiment of neutron-irradiated Be12Ti with a total fast fluence of about 4x10 exp 20 n/cm exp 2 (E > 1 MeV) was carried out at 330, 400 and 500 deg C. It was clear that tritium could be released easier than from beryllium, and the apparent diffusion coefficient in Be12Ti was about two orders larger than that in beryllium at 600--100 deg C. In addition to the good tritium release property, the swelling calculated from the density change of the specimens up to 1100 deg C in this test was smaller than that of beryllium. |
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| Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 0022-3115 |
| DOI: | 10.1016/S0022-3115(02)01219-9 |