Helium effects and bubbles formation in irradiated Ti3SiC2
نویسندگان
چکیده
منابع مشابه
Evolution of Helium Bubbles and Discs in Irradiated 6H-SiC during Post-Implantation Annealing
The single crystal 6H-SiC with [0001] crystal direction irradiated by 400 keV He⁺ ions with 1 × 1017 ions/cm² fluence at 400 °C were annealed at 600, 900, 1200 and 1400 °C for different durations. The evolution of helium bubbles and discs was investigated by transmission electron microscopy. An irradiated layer distributed with fine helium bubbles was formed with a width of ~170 nm after helium...
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A recent proposal by Maris[1], that single electron bubbles in helium might fission into separate, particle-like entities, does not properly take into account the failure of the adiabatic approximation when, due to tunneling, there is a long electronic time scale. The point along the fission pathway of a photoexcited p -state bubble, where the adiabatic approximation first breaks down, occurs w...
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of a bubble (F is the diele~tric onstant of liquid helium) gives the class~cal *'Coulomb radius" of the bubble (this value is accurate for the bubbles considered ( 5 , 6)). For typical charges Z of 10510' electrons, this yields radii between 10 and 100 pm. The electrons in a bubble are confined to a narrow region of only a fcw Bngstrorns width close to the bubble surface, owing to their mutual ...
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ژورنال
عنوان ژورنال: Journal of the European Ceramic Society
سال: 2021
ISSN: 0955-2219
DOI: 10.1016/j.jeurceramsoc.2020.08.015