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P-V-T relation of the Fe-H system under hydrogen pressure of several gigapascals
https://repo.qst.go.jp/records/47962
https://repo.qst.go.jp/records/47962bb95db20-edfc-410a-b70d-c2793075e4b9
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-05-23 | |||||
| タイトル | ||||||
| タイトル | P-V-T relation of the Fe-H system under hydrogen pressure of several gigapascals | |||||
| 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 |
齋藤, 寛之
× 齋藤, 寛之× 町田, 晃彦× Sugimoto, Hidehiko× Yagi, Takehiko× 青木, 勝敏× 齋藤 寛之× 町田 晃彦× 青木 勝敏 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We have measured the volumes of dhcp- and fcc-FeHx at temperatures of 300–950 K and hydrogen pressures of 4–7 GPa using in situ X-ray diffraction. For dhcp-FeHx, slight reduction in volume starting at around 500 K on heating was observed in the V–T relations. This is likely related to magnetic transition. For fcc-FeHx, the expanded volumes per Fe atom with respect to fcc-Fe metal were converted to hydrogen compositions x using hydrogen-induced volume pansion vH. A miscibility ｇap in the x–T diagram of fcc-FeHx was confirmed to be in agreement with an earlier study, and the critical pressure was located in a rather narrow span of 4.0–4.5 GPa with a critical composition of x = ~0.4. We xamined Arrhenius plot analysis of the x–T relations to derive the enthalpy of solution of hydrogen delta-Hs. However, an irregular behavior of the x–T relations did not allow derivation of a reliable value of delta-Hs. | |||||
| 書誌情報 |
Journal of Alloys and Compounds 巻 706, 号 5, p. 520-525, 発行日 2017-03 |
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| 出版者 | ||||||
| 出版者 | Elsevier | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.jallcom.2017.02.209 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.sciencedirect.com/science/article/pii/S0925838817306552 | |||||
| 関連名称 | http://www.sciencedirect.com/science/article/pii/S0925838817306552 | |||||
