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Effect of grain size on the sinterability and reactivity of vanadium-beryllium intermetallic compounds
https://repo.qst.go.jp/records/76373
https://repo.qst.go.jp/records/7637376348199-5e72-41e4-9b87-0ee3ff6617c5
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-07-29 | |||||
| タイトル | ||||||
| タイトル | Effect of grain size on the sinterability and reactivity of vanadium-beryllium intermetallic compounds | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Kim, Jaehwan
× Kim, Jaehwan× Nakamichi, Masaru× Kim, Jaehwan× Nakamichi, Masaru |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Vanadium beryllium intermetallic compounds (Be12V beryllides) are attractive materials for refractory and fusion applications at high temperatures. In this study, to investigate the effect of grain size on sinterability and reactivity of beryllides at high temperatures (expecting operation temperatures), single-phase vanadium beryllides with different grain sizes were fabricated via pulverization of homogenized powders and plasma sintering. While evaluating sintered Be12V, as the ball-milling time increased, the powder size decreased. As this grain size deceased, density and hardness increased. With respect to thermal expansion, the coefficient of thermal expansion slightly increased with decreasing grain size. As results of reactivity and the scanning electron microscopic observations, it indicated that grain boundary oxidation is predominant at 1273 K, whereas intergranular oxidation prevails at 1473 K. Accordingly, as the grain size increased up to 10 μm, the weight gain and the H2 generation amount decreased at 1273 K and 1473 K, respectively. |
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| 書誌情報 |
Fusion Engineering and Design 巻 144, p. 93-96, 発行日 2019-05 |
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| 出版者 | ||||||
| 出版者 | Elsevier | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0920-3796 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.fusengdes.2019.04.081 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.sciencedirect.com/science/article/pii/S0920379619306167 | |||||
