Helium bubble nucleation and growth in alloy HT9 through the use of in situ TEM: Sequential he-implantation and heavy-ion irradiation versus dual-beam irradiation
نویسندگان
چکیده
The formation of He bubbles in Ferritic/Martensitic steel HT9 is investigated through the use situ Transmission Electron Microscopy coupled with implantation and heavy ion irradiation. Of particular interest effect increasing appm/dpa ratio on growth bubbles, as well sequential order irradiation i.e. He-pre-implantation followed by heavy-ion versus true dual-beam role discussed.
منابع مشابه
In situ TEM ion irradiation and implantation effects on Au nanoparticle morphologies.
Energetic heavy and light ion effects on gold nanoparticles were probed by irradiating 20 and 60 nm diameter nanoparticles with either 3 MeV Cu(3+) or 10 keV He(+) ions in situ inside of a transmission electron microscope. Both ion species caused sintering, agglomeration, and ablation of the nanoparticles via sputtering, although at different rates.
متن کاملIn Situ TEM Multi-Beam Ion Irradiation as a Technique for Elucidating Synergistic Radiation Effects
Materials designed for nuclear reactors undergo microstructural changes resulting from a combination of several environmental factors, including neutron irradiation damage, gas accumulation and elevated temperatures. Typical ion beam irradiation experiments designed for simulating a neutron irradiation environment involve irradiating the sample with a single ion beam and subsequent characteriza...
متن کاملefl students gender and socioeconomic status: the use of politeness strategies in the first and second languages
within the components of communicative competence, a special emphasis is put on the “rules of politeness,” specifically the politeness strategies (brown and levinson, 1978) that speakers deploy when performing the request speech act. this is because the degree of imposition that making a request places upon one’s interlocutor(s) has been seen to be influenced by several factors among which, as ...
An In-situ Tem Study of the Effects of 6 Kev He Ion Irradiation on Si and Sio 2
Using the new MIAMI facility at the University of Huddersfield, an in-situ TEM study has been carried out on the effects of helium implantation on a tri-layer system consisting of monocrystalline silicon (c-Si), silicon dioxide (SiO2) and polycrystalline silicon (poly-Si). Co-irradiation of these three components enabled direct comparisons to be made of differences between the response of c-Si ...
متن کاملThe Design and Implementation of a Single, Double, and Triple Concurrent Beam In Situ Ion Irradiation TEM Facility
The study of irradiation-induced defects on the nanoscale is crucial for a fundamental understanding of displacement and implantation damage in various microstructures. Ion irradiation performed in situ inside of a TEM is a unique tool allowing direct observation of defect evolution on nanometer length scales in real time [1]. Most facilities use a single ion beam, but in many real radiation en...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Nuclear Materials
سال: 2021
ISSN: ['1873-4820', '0022-3115']
DOI: https://doi.org/10.1016/j.jnucmat.2020.152641