Deuterium Distribution in Fe/V Multi-Layered Films
The recent progress of Atom Probe Tomography (APT) has opened up atomic-scale elemental analysis including hydrogen species. For APT measurements, the use of deuterium is highly recommended, due to its low mobility compared to the fast and quantum mechanically tunneling isotope hydrogen. In addition...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/22/7848 |
| _version_ | 1797464456463122432 |
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| author | Ryota Gemma Talaat Al-Kassab Astrid Pundt |
| author_facet | Ryota Gemma Talaat Al-Kassab Astrid Pundt |
| author_sort | Ryota Gemma |
| collection | DOAJ |
| description | The recent progress of Atom Probe Tomography (APT) has opened up atomic-scale elemental analysis including hydrogen species. For APT measurements, the use of deuterium is highly recommended, due to its low mobility compared to the fast and quantum mechanically tunneling isotope hydrogen. In addition, deuterium can be distinguished from hydrogen originating from the APT analysis chamber. To date, however, APT studies on materials with high D concentrations are scarce. In this study, the D concentration profile in a Fe/V multi-layered film sample was investigated, and spanned a wide concentration range. The mean hydrogen isotope concentration was alternatively quantified by electromotive force (EMF) measurements on a similar Fe/V film, thus verifying the APT results. The reduction found in the D concentration at the Fe/V interface results from local alloying at the Fe/V interfaces which accompanies a change in the available volume in the V lattice. Even at the same Fe concentration, the shape of the observed D depth profile was asymmetric at high D<sub>2</sub> pressures. This indicates a stress impact caused by the deposition sequence. |
| first_indexed | 2024-03-09T18:07:27Z |
| format | Article |
| id | doaj.art-e5d85860d7704e578e38b0993a072e16 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T18:07:27Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-e5d85860d7704e578e38b0993a072e162023-11-24T09:22:07ZengMDPI AGMolecules1420-30492022-11-012722784810.3390/molecules27227848Deuterium Distribution in Fe/V Multi-Layered FilmsRyota Gemma0Talaat Al-Kassab1Astrid Pundt2Department of Applied Chemistry, Tokai University, Hiratsuka 259-1292, JapanInstitute of Materials Physics, University of Göttingen, 37077 Göttingen, GermanyInstitute of Materials Physics, University of Göttingen, 37077 Göttingen, GermanyThe recent progress of Atom Probe Tomography (APT) has opened up atomic-scale elemental analysis including hydrogen species. For APT measurements, the use of deuterium is highly recommended, due to its low mobility compared to the fast and quantum mechanically tunneling isotope hydrogen. In addition, deuterium can be distinguished from hydrogen originating from the APT analysis chamber. To date, however, APT studies on materials with high D concentrations are scarce. In this study, the D concentration profile in a Fe/V multi-layered film sample was investigated, and spanned a wide concentration range. The mean hydrogen isotope concentration was alternatively quantified by electromotive force (EMF) measurements on a similar Fe/V film, thus verifying the APT results. The reduction found in the D concentration at the Fe/V interface results from local alloying at the Fe/V interfaces which accompanies a change in the available volume in the V lattice. Even at the same Fe concentration, the shape of the observed D depth profile was asymmetric at high D<sub>2</sub> pressures. This indicates a stress impact caused by the deposition sequence.https://www.mdpi.com/1420-3049/27/22/7848atom probehydrogendeuteriuminterface |
| spellingShingle | Ryota Gemma Talaat Al-Kassab Astrid Pundt Deuterium Distribution in Fe/V Multi-Layered Films Molecules atom probe hydrogen deuterium interface |
| title | Deuterium Distribution in Fe/V Multi-Layered Films |
| title_full | Deuterium Distribution in Fe/V Multi-Layered Films |
| title_fullStr | Deuterium Distribution in Fe/V Multi-Layered Films |
| title_full_unstemmed | Deuterium Distribution in Fe/V Multi-Layered Films |
| title_short | Deuterium Distribution in Fe/V Multi-Layered Films |
| title_sort | deuterium distribution in fe v multi layered films |
| topic | atom probe hydrogen deuterium interface |
| url | https://www.mdpi.com/1420-3049/27/22/7848 |
| work_keys_str_mv | AT ryotagemma deuteriumdistributioninfevmultilayeredfilms AT talaatalkassab deuteriumdistributioninfevmultilayeredfilms AT astridpundt deuteriumdistributioninfevmultilayeredfilms |