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Helium Bubbles and Blistering in a Nanolayered Metal/Hydride Composite

Helium is insoluble in most metals and precipitates out to form nanoscale bubbles when the concentration is greater than 1 at.%, which can alter the material properties. Introducing controlled defects such as multilayer interfaces may offer some level of helium bubble management. This study investig...

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Autores principales: Taylor, Caitlin A., Lang, Eric, Kotula, Paul G., Goeke, Ronald, Snow, Clark S., Wang, Yongqiang, Hattar, Khalid
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8471048/
https://www.ncbi.nlm.nih.gov/pubmed/34576617
http://dx.doi.org/10.3390/ma14185393
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author Taylor, Caitlin A.
Lang, Eric
Kotula, Paul G.
Goeke, Ronald
Snow, Clark S.
Wang, Yongqiang
Hattar, Khalid
author_facet Taylor, Caitlin A.
Lang, Eric
Kotula, Paul G.
Goeke, Ronald
Snow, Clark S.
Wang, Yongqiang
Hattar, Khalid
author_sort Taylor, Caitlin A.
collection PubMed
description Helium is insoluble in most metals and precipitates out to form nanoscale bubbles when the concentration is greater than 1 at.%, which can alter the material properties. Introducing controlled defects such as multilayer interfaces may offer some level of helium bubble management. This study investigates the effects of multilayered composites on helium behavior in ion-implanted, multilayered ErD(2)/Mo thin film composites. Following in-situ and ex-situ helium implantation, scanning and transmission electron microscopy showed the development of spherical helium bubbles within the matrix, but primarily at the layer interfaces. Bubble linkage and surface blistering is observed after high fluence ex-situ helium implantation. These results show the ability of metallic multilayers to alter helium bubble distributions even in the presence of a hydride layer, increasing the lifetime of materials in helium environments.
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spelling pubmed-84710482021-09-27 Helium Bubbles and Blistering in a Nanolayered Metal/Hydride Composite Taylor, Caitlin A. Lang, Eric Kotula, Paul G. Goeke, Ronald Snow, Clark S. Wang, Yongqiang Hattar, Khalid Materials (Basel) Article Helium is insoluble in most metals and precipitates out to form nanoscale bubbles when the concentration is greater than 1 at.%, which can alter the material properties. Introducing controlled defects such as multilayer interfaces may offer some level of helium bubble management. This study investigates the effects of multilayered composites on helium behavior in ion-implanted, multilayered ErD(2)/Mo thin film composites. Following in-situ and ex-situ helium implantation, scanning and transmission electron microscopy showed the development of spherical helium bubbles within the matrix, but primarily at the layer interfaces. Bubble linkage and surface blistering is observed after high fluence ex-situ helium implantation. These results show the ability of metallic multilayers to alter helium bubble distributions even in the presence of a hydride layer, increasing the lifetime of materials in helium environments. MDPI 2021-09-18 /pmc/articles/PMC8471048/ /pubmed/34576617 http://dx.doi.org/10.3390/ma14185393 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Taylor, Caitlin A.
Lang, Eric
Kotula, Paul G.
Goeke, Ronald
Snow, Clark S.
Wang, Yongqiang
Hattar, Khalid
Helium Bubbles and Blistering in a Nanolayered Metal/Hydride Composite
title Helium Bubbles and Blistering in a Nanolayered Metal/Hydride Composite
title_full Helium Bubbles and Blistering in a Nanolayered Metal/Hydride Composite
title_fullStr Helium Bubbles and Blistering in a Nanolayered Metal/Hydride Composite
title_full_unstemmed Helium Bubbles and Blistering in a Nanolayered Metal/Hydride Composite
title_short Helium Bubbles and Blistering in a Nanolayered Metal/Hydride Composite
title_sort helium bubbles and blistering in a nanolayered metal/hydride composite
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8471048/
https://www.ncbi.nlm.nih.gov/pubmed/34576617
http://dx.doi.org/10.3390/ma14185393
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