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Nano-yttria in oxide dispersion strengthened tungsten under alpha particle irradiation

M.G. Petaccia / J.L. Gervasoni

Oxide dispersion strengthened (ODS) alloys, particularly steels and tungsten with yttria nanoparticles, have been proved to be a new class of high-strength nuclear material. We developed a simple model of an ODS tungsten alloy to study the primary damage produced by alpha particle irradiation on it. We show that the size of yttria nanoparticles embedded in a tungsten matrix is an important quantity to take into account under alpha particle irradiation. We explain the observed behaviors and we establish a critical scale parameter for the model we use, making a comparison with bulk tungsten. Keywords: Primary radiation damage, Nuclear materials, ODS tungsten, Controlled Nuclear Fusion

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Nano-yttria in oxide dispersion strengthened tungsten under alpha particle irradiation

M.G. Petaccia / J.L. Gervasoni

Oxide dispersion strengthened (ODS) alloys, particularly steels and tungsten with yttria nanoparticles, have been proved to be a new class of high-strength nuclear material. We developed a simple model of an ODS tungsten alloy to study the primary damage produced by alpha particle irradiation on it. We show that the size of yttria nanoparticles embedded in a tungsten matrix is an important quantity to take into account under alpha particle irradiation. We explain the observed behaviors and we establish a critical scale parameter for the model we use, making a comparison with bulk tungsten. Keywords: Primary radiation damage, Nuclear materials, ODS tungsten, Controlled Nuclear Fusion

Nano-yttria in oxide dispersion strengthened tungsten under alpha particle irradiation

M.G. Petaccia / J.L. Gervasoni

Oxide dispersion strengthened (ODS) alloys, particularly steels and tungsten with yttria nanoparticles, have been proved to be a new class of high-strength nuclear material. We developed a simple model of an ODS tungsten alloy to study the primary damage produced by alpha particle irradiation on it. We show that the size of yttria nanoparticles embedded in a tungsten matrix is an important quantity to take into account under alpha particle irradiation. We explain the observed behaviors and we establish a critical scale parameter for the model we use, making a comparison with bulk tungsten. Keywords: Primary radiation damage, Nuclear materials, ODS tungsten, Controlled Nuclear Fusion

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Title:

Nano-yttria in oxide dispersion strengthened tungsten under alpha particle irradiation

Contributors:

M.G. Petaccia (author) / J.L. Gervasoni (author)

Published in:

Nuclear Materials and Energy, Vol 20, Iss , Pp - (2019)

Publication date:

2019

ISSN:

DOI:

https://doi.org/10.1016/j.nme.2019.100681

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

Keywords:

Nuclear engineering. Atomic power , TK9001-9401

Metadata by DOAJ is licensed under CC BY-SA 1.0

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