✦ LIBER ✦

181. Dimensional changes and radiation creep of graphite at very high neutron doses

✍ Scribed by A.J Perks; J.H.W Simmons

Publisher: Elsevier Science
Year: 1965
Tongue: English
Weight: 117 KB
Volume: 3
Category: Article
ISSN: 0008-6223
DOI: 10.1016/0008-6223(65)90247-2

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✦ Synopsis

The paper presents the results of graphite irradiations carried out in the Dounreay Fast Reactor; the use of this reactor for graphite irradiations is advantageous for several reasons. The total neutron flux is very high, practically all the neutrons have energies capable of producing damage in graphite and there is a very long fuel cycle. These circumstances have enabled experiments to be carried out to a maximum dose of 2.3 x 10" in the course of a few months at temperatures in the range 260-500°C. The results are discussed in terms of current theories of dimensional changes and radiation creep; the dimensional changes follow the trends expected but a high tensile creep strain (2%) is observed.

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