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Progress of Helium Evolution in Aging Titanium Tritide Film

Xiaosong ZhouInstitute of Nuclear Physics and Chemistry, CAEP, Mianyang, CHINA, 621900Shuming PengInstitute of Nuclear Physics and Chemistry, CAEP, Mianyang, CHINA, 621900Xinggui LongInstitute of Nuclear Physics and Chemistry, CAEP, Mianyang, CHINA, 621900Shunzhong LuoInstitute of Nuclear Physics and Chemistry, CAEP, Mianyang, CHINA, 621900

Fusion Science & Technologyjournal2011en

ABI

Annotatsiya

AbstractHelium release from titanium tritide films at room temperature have been studied. The evolution of lattice defects in long-aged titanium tritide films is also investigated by X-ray diffraction (XRD) over a period of about 1600 days (>4 years). And the thermal desorption (TD) has been used to investigate the 3He release from titanium tritide film with 3He/Ti atom ratio from 0.006 to 0.325. Results of XRD, TD and helium release were synthesized. A continuum-scale evolutionary model of helium for aging titanium tritide film is described which accounts for major features of the tritide experiment data. The combined stress-assisted-block loop punching growth for random bubble arrays and an average ligament stress criterion predicts an onset of inter-bubble fracture in good agreement with the He/Ti ratio observed for rapid He release.

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Superconducting Materials and Applications Fusion materials and technologies Spacecraft and Cryogenic Technologies

Identifikatorlar

DOI: 10.13182/fst11-a12563

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