The synergistic effect of deuterium and helium on the microstructure evolution of W–Y2O3 material during plasma exposure
This study presents a systematic investigation of the synergistic effect of deuterium and helium on the microstructural evolution of W–Y _2 O _3 material during plasma exposure. The effect of single D/He and sequential D/He, He/D plasma exposure on the stability of Y _2 O _3 nanoparticles and the mi...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | Nuclear Fusion |
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| Online Access: | https://doi.org/10.1088/1741-4326/addb5e |
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| author | Meiye Pan Lipeng Sun Yifan Zhang Jing Wang Laima Luo Yucheng Wu |
| author_facet | Meiye Pan Lipeng Sun Yifan Zhang Jing Wang Laima Luo Yucheng Wu |
| author_sort | Meiye Pan |
| collection | DOAJ |
| description | This study presents a systematic investigation of the synergistic effect of deuterium and helium on the microstructural evolution of W–Y _2 O _3 material during plasma exposure. The effect of single D/He and sequential D/He, He/D plasma exposure on the stability of Y _2 O _3 nanoparticles and the microstructural evolution of the W matrix were investigated using scanning electron microscopy and transmission electron microscopy. The results indicate that Y _2 O _3 particles undergo a significant size change during plasma exposure, and this process was significantly influenced by the synergistic effects of hydrogen and helium. The size evolution of Y _2 O _3 particles is controlled by three mechanisms: the etching-controlled process at the initial stage, followed by deposition-controlled process or mixed-controlled processes. Interestingly, the fuzz structure on the surface of Y _2 O _3 particles is proved to be W instead of Y _2 O _3 , which results from the deposition during plasma exposure. Significant synergistic effects of deuterium and helium were observed, in which the strong combination of H and He-vacancy composites suppressed the bubble formation and growth, leading to a different evolutionary dynamic. |
| format | Article |
| id | doaj-art-c5dbb7c2b60345ddaf66f254cb525b17 |
| institution | OA Journals |
| issn | 0029-5515 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Nuclear Fusion |
| spelling | doaj-art-c5dbb7c2b60345ddaf66f254cb525b172025-08-20T02:01:04ZengIOP PublishingNuclear Fusion0029-55152025-01-0165707600210.1088/1741-4326/addb5eThe synergistic effect of deuterium and helium on the microstructure evolution of W–Y2O3 material during plasma exposureMeiye Pan0Lipeng Sun1Yifan Zhang2Jing Wang3https://orcid.org/0000-0001-7346-8286Laima Luo4https://orcid.org/0000-0002-4455-7391Yucheng Wu5School of Materials Science and Engineering, Hefei University of Technology , Hefei 230009, ChinaSchool of Materials Science and Engineering, Hefei University of Technology , Hefei 230009, ChinaSchool of Materials Science and Engineering, Hefei University of Technology , Hefei 230009, China; Engineering Research Center of High-Performance Copper Alloy Materials and Processing , Ministry of Education, Hefei 230009, ChinaSchool of Materials Science and Engineering, Hefei University of Technology , Hefei 230009, ChinaSchool of Materials Science and Engineering, Hefei University of Technology , Hefei 230009, China; Engineering Research Center of High-Performance Copper Alloy Materials and Processing , Ministry of Education, Hefei 230009, ChinaSchool of Materials Science and Engineering, Hefei University of Technology , Hefei 230009, China; Engineering Research Center of High-Performance Copper Alloy Materials and Processing , Ministry of Education, Hefei 230009, ChinaThis study presents a systematic investigation of the synergistic effect of deuterium and helium on the microstructural evolution of W–Y _2 O _3 material during plasma exposure. The effect of single D/He and sequential D/He, He/D plasma exposure on the stability of Y _2 O _3 nanoparticles and the microstructural evolution of the W matrix were investigated using scanning electron microscopy and transmission electron microscopy. The results indicate that Y _2 O _3 particles undergo a significant size change during plasma exposure, and this process was significantly influenced by the synergistic effects of hydrogen and helium. The size evolution of Y _2 O _3 particles is controlled by three mechanisms: the etching-controlled process at the initial stage, followed by deposition-controlled process or mixed-controlled processes. Interestingly, the fuzz structure on the surface of Y _2 O _3 particles is proved to be W instead of Y _2 O _3 , which results from the deposition during plasma exposure. Significant synergistic effects of deuterium and helium were observed, in which the strong combination of H and He-vacancy composites suppressed the bubble formation and growth, leading to a different evolutionary dynamic.https://doi.org/10.1088/1741-4326/addb5eW–Y2O3plasma exposureH/He synergistic effectmicrostructure stability |
| spellingShingle | Meiye Pan Lipeng Sun Yifan Zhang Jing Wang Laima Luo Yucheng Wu The synergistic effect of deuterium and helium on the microstructure evolution of W–Y2O3 material during plasma exposure Nuclear Fusion W–Y2O3 plasma exposure H/He synergistic effect microstructure stability |
| title | The synergistic effect of deuterium and helium on the microstructure evolution of W–Y2O3 material during plasma exposure |
| title_full | The synergistic effect of deuterium and helium on the microstructure evolution of W–Y2O3 material during plasma exposure |
| title_fullStr | The synergistic effect of deuterium and helium on the microstructure evolution of W–Y2O3 material during plasma exposure |
| title_full_unstemmed | The synergistic effect of deuterium and helium on the microstructure evolution of W–Y2O3 material during plasma exposure |
| title_short | The synergistic effect of deuterium and helium on the microstructure evolution of W–Y2O3 material during plasma exposure |
| title_sort | synergistic effect of deuterium and helium on the microstructure evolution of w y2o3 material during plasma exposure |
| topic | W–Y2O3 plasma exposure H/He synergistic effect microstructure stability |
| url | https://doi.org/10.1088/1741-4326/addb5e |
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