Investigation by STEM-EELS of helium density in nanobubbles formed in aged palladium tritides
نویسندگان
چکیده
3He nanobubbles created by radioactive decay of tritium in palladium tritide are investigated after several years aging. Scanning Transmission Electron Microscopy Energy-Loss Spectroscopy (STEM-EELS) has been used to measure helium density from the K-edge around 23 eV. Helium densities were found between 20 and 140 (+/-30) He/nm3 corresponding nanobubble pressures range 0.1 3 (+/-0.2) GPa. Measuring mapping He atoms STEM-EELS enables differentiate bubbles empty cavities matrix.
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ژورنال
عنوان ژورنال: Journal of Alloys and Compounds
سال: 2021
ISSN: ['0925-8388', '1873-4669']
DOI: https://doi.org/10.1016/j.jallcom.2021.160267