| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-07-24 |
| タイトル |
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タイトル |
W-concentration dependent radiation-induced amorphization in M23C6 via atomic-scale analysis by Voronoi tessellation |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Kano Sho
Huilong Yang
Ando Masami
Hamaguchi Dai
Nozawa Takashi
Tanigawa Hiroyasu
Tamaki Shibayama
Abe Hiroaki
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Voronoi tessellation was innovatively applied to interpret the high-resolution atomic-scale micrographs of the Cr-W-C ternary M23C6 with and without irradiation to provide mechanistic insight into the phase stability under irradiation. A W concentration-dependent radiation-induced amorphization behavior was observed and the amorphization was confirmed in the 4 W sample (?12 at.%W). Analysis of the local crystal structure using Voronoi diagrams shows that the average size of each Voronoi cell and its standard deviation are affected by irradiation and W concentration. In addition, the standard deviation of the Voronoi cell size, which is considered an indicator of the uncertainty of the atomic column positions, is also plotted as a function of the lattice parameter change. This mathematical analysis indicates that a higher W concentration tends to cause a more severe disordering of the atomic distribution upon irradiation, which is directly correlated with the occurrence of amorphization. |
| 書誌情報 |
Materialia
巻 36,
p. 102186,
発行日 2024-10
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| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1016/j.mtla.2024.102186 |
