Thermal Stability Testing of LANA.75
نویسندگان
چکیده
Savannah River Site has used the metal hydride LaNi4.25Al0.75 (LANA.75) in Tritium Facilities for over two decades. LANA.75 beds store significant quantities of tritium but have a limited service life due to radiolytic decay 3He within matrix. It been shown that isotherm performance tritium-aged sample can be restored by heating under vacuum. Additional investigation is needed ensure there are no unexpected changes before this technique employed full-scale Facilities. In addition, it necessary verify regenerable behavior and thermal stability on small scale prior being implemented large scale.A non-tritiated bench-scale was held at 750°C vacuum 200 h simulate exposure multiple restoration evolutions. Hydride performance, chemical composition, crystallinity, morphology compared between pre-restorative post-restorative testing samples. No were observed composition or crystallinity. Comparison pre-anneal post-anneal isotherms showed improved rather than deteriorated during evolution. Scanning electron microscopy analysis growths particle surface after regeneration conditions. will required determine cause these growths.
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ژورنال
عنوان ژورنال: Fusion Science and Technology
سال: 2021
ISSN: ['1943-7641', '1536-1055']
DOI: https://doi.org/10.1080/15361055.2021.1906135