Diffusion of tritium in zircaloy-2
1980; Elsevier BV; Volume: 88; Issue: 1 Linguagem: Inglês
10.1016/0022-3115(80)90381-5
ISSN1873-4820
AutoresG.U. Greger, H. Münzel, Willfried Kunz, A. Schwierczinski,
Tópico(s)Radioactive element chemistry and processing
ResumoThe dependency of the tritium diffusion in Zircaloy-2 on the temperature as well as on the oxygen and hydrogen concentration was investigated. From the determined diffusion coefficients the following values for the frequency factor d0 and the activation energy Ea were obtained: D0 = (1.04+0.28−0.17 ) 10−3 [cm2 · s−1 ], Ea = -42.1 ± 1.1 [kJ · mol−1 ]. In the concentration range from 1350 to 11300 ppm oxygen and 15 to 1000 ppm hydrogen no systematic influence of these elements on the tritium diffusion coefficients was observed.
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