| アイテムタイプ |
学術雑誌論文 = Journal Article(1) |
| 公開日 |
2024-04-26 |
| 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 |
| タイトル |
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|
タイトル |
Ab initio calculation for electronic structure and optical property of tungsten carbide in a TiCN-based cermet for solar thermal applications |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 著者 |
Hayakawa, Shota
Chono, Toshiharu
Watanabe, Kosuke
Kawano, Shoya
中村, 和磨
宮崎, 康次
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| 抄録 |
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内容記述タイプ |
Abstract |
|
内容記述 |
We present an ab initio calculation to understand electronic structures and optical properties of a tungsten carbide WC being a major component of a TiCN-based cermet. The TiCN-based cermet is widely used as a cutting tool, and is discarded as usual after use. On the other hand, cermet itself is also a famous ingredient of a solar absorption film. We found that the WC has a fairly low-energy plasma excitation ~ 0.6 eV (2 μm) and therefore can be a good constituent of a solar selective absorber. The evaluated figure of merit for photothermal conversion is prominently high compared to those of the other materials included in the TiCN-based cermet. The imaginary part of the dielectric function is considerably small around the zero point of the real part of the dielectric function, corresponding to the plasma excitation energy. Therefore, a clear plasma edge appeared, ensuring the high performance of the WC as the solar absorber. This is a fascinating aspect, because the wasted TiCN-based cermet cutting tool can be recycled as the solar absorption film after proper treatments and modifications. |
|
言語 |
en |
| 書誌情報 |
en : Scientific Reports
巻 13,
p. 9407,
発行日 2023-06-09
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| 出版社 |
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出版者 |
Nature Publishing Group |
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言語 |
en |
| DOI |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
DOI |
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|
関連識別子 |
https://doi.org/10.1038/s41598-023-36337-4 |
| ISSN |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
2045-2322 |
| 著作権関連情報 |
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|
権利情報Resource |
http://creativecommons.org/licenses/by/4.0/ |
|
権利情報 |
Copyright (c) The Author(s) 2023. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
| 出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 査読の有無 |
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値 |
yes |
| 研究者情報 |
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|
URL |
https://hyokadb02.jimu.kyutech.ac.jp/html/26_ja.html |
| 論文ID（連携） |
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|
値 |
10429522 |
| 連携ID |
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|
値 |
12129 |
10429522.pdf (3.4 MB)
