Blistering and hydrogen retention in poly- and single- crystals of aluminum by a joint experimental-modeling approach

Blistering and hydrogen retention in poly- and single- crystals of aluminum by a joint experimental-modeling approach

Aluminum samples have been exposed to a hydrogen plasma generated by a low-pressure – high-density microwave reactor. Aluminum has been chosen as a surrogate for Beryllium. The fluence was kept below 4 × 1024 ions/m2, in order to study the first steps of nucleation and growth of surface and bulk def...

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Main Authors: C. Quiros, J. Mougenot, R. Bisson, M. Redolfi, A. Michau, K. Hassouni, G. Lombardi
Format: Article
Language:English
Published: Elsevier 2019-08-01
Series:Nuclear Materials and Energy
Online Access:http://www.sciencedirect.com/science/article/pii/S2352179118301534
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spelling doaj-6174b5677b4a4b1dbc28868d38b50a2b2020-11-25T01:35:59ZengElsevierNuclear Materials and Energy2352-17912019-08-0120Blistering and hydrogen retention in poly- and single- crystals of aluminum by a joint experimental-modeling approachC. Quiros0J. Mougenot1R. Bisson2M. Redolfi3A. Michau4K. Hassouni5G. Lombardi6LSPM-CNRS, Université Paris 13, Sorbonne Paris Cité, 93490 Villetaneuse, FranceLSPM-CNRS, Université Paris 13, Sorbonne Paris Cité, 93490 Villetaneuse, FranceAix-Marseille Univ, CNRS, PIIM, Marseille, FranceLSPM-CNRS, Université Paris 13, Sorbonne Paris Cité, 93490 Villetaneuse, FranceLSPM-CNRS, Université Paris 13, Sorbonne Paris Cité, 93490 Villetaneuse, FranceLSPM-CNRS, Université Paris 13, Sorbonne Paris Cité, 93490 Villetaneuse, FranceLSPM-CNRS, Université Paris 13, Sorbonne Paris Cité, 93490 Villetaneuse, France; Corresponding author.Aluminum samples have been exposed to a hydrogen plasma generated by a low-pressure – high-density microwave reactor. Aluminum has been chosen as a surrogate for Beryllium. The fluence was kept below 4 × 1024 ions/m2, in order to study the first steps of nucleation and growth of surface and bulk defects, i.e. blisters and bubbles. Experimental analyzes and macroscopic rate equation (MRE) modeling on poly- and single- crystals were made to investigate the role played by grains boundaries in the hydrogen retention. Temperature programmed desorption (TPD) on Al poly-crystals revealed the production of aluminum hydrides (alanes) as majority species in the desorption flux. Comparison of microscopy observations for three different single-crystal orientations (〈100〉, 〈110〉 and 〈111〉) allowed to determine preferential orientations able to attenuate the formation of blisters. Keywords: Blistering, Aluminum, Hydrogen inventoryhttp://www.sciencedirect.com/science/article/pii/S2352179118301534
collection DOAJ
language English
format Article
sources DOAJ
author C. Quiros
J. Mougenot
R. Bisson
M. Redolfi
A. Michau
K. Hassouni
G. Lombardi
spellingShingle C. Quiros
J. Mougenot
R. Bisson
M. Redolfi
A. Michau
K. Hassouni
G. Lombardi
Blistering and hydrogen retention in poly- and single- crystals of aluminum by a joint experimental-modeling approach
Nuclear Materials and Energy
author_facet C. Quiros
J. Mougenot
R. Bisson
M. Redolfi
A. Michau
K. Hassouni
G. Lombardi
author_sort C. Quiros
title Blistering and hydrogen retention in poly- and single- crystals of aluminum by a joint experimental-modeling approach
title_short Blistering and hydrogen retention in poly- and single- crystals of aluminum by a joint experimental-modeling approach
title_full Blistering and hydrogen retention in poly- and single- crystals of aluminum by a joint experimental-modeling approach
title_fullStr Blistering and hydrogen retention in poly- and single- crystals of aluminum by a joint experimental-modeling approach
title_full_unstemmed Blistering and hydrogen retention in poly- and single- crystals of aluminum by a joint experimental-modeling approach
title_sort blistering and hydrogen retention in poly- and single- crystals of aluminum by a joint experimental-modeling approach
publisher Elsevier
series Nuclear Materials and Energy
issn 2352-1791
publishDate 2019-08-01
description Aluminum samples have been exposed to a hydrogen plasma generated by a low-pressure – high-density microwave reactor. Aluminum has been chosen as a surrogate for Beryllium. The fluence was kept below 4 × 1024 ions/m2, in order to study the first steps of nucleation and growth of surface and bulk defects, i.e. blisters and bubbles. Experimental analyzes and macroscopic rate equation (MRE) modeling on poly- and single- crystals were made to investigate the role played by grains boundaries in the hydrogen retention. Temperature programmed desorption (TPD) on Al poly-crystals revealed the production of aluminum hydrides (alanes) as majority species in the desorption flux. Comparison of microscopy observations for three different single-crystal orientations (〈100〉, 〈110〉 and 〈111〉) allowed to determine preferential orientations able to attenuate the formation of blisters. Keywords: Blistering, Aluminum, Hydrogen inventory
url http://www.sciencedirect.com/science/article/pii/S2352179118301534
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