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アイテム
Phase Equilibrium in the Y-Fe-O System at 1000℃
https://niit.repo.nii.ac.jp/records/117
https://niit.repo.nii.ac.jp/records/1170d09c5ec-50f7-4ff0-9ace-39a7993f11b3
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
9_19-28.pdf (2.8 MB)
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| アイテムタイプ | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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| 公開日 | 2010-11-08 | |||||
| タイトル | ||||||
| タイトル | Phase Equilibrium in the Y-Fe-O System at 1000℃ | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題 | Phase equilibrium | |||||
| キーワード | ||||||
| 主題 | Thermogravimetry | |||||
| キーワード | ||||||
| 主題 | Yttrium-iron oxide | |||||
| キーワード | ||||||
| 主題 | Gibbs energy | |||||
| 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 | departmental bulletin paper | |||||
| 著者 |
Kitayama, Kenzo
× Kitayama, Kenzo× Takano, Miyuki× Eitaki, Kozo× Hoshina, Akihiro |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Phase equilibrium was established in the Y-Fe-O system at 1000℃ with an oxygen partial pressure ranging from -log (Po2/atm)=0 to 16.15, allowing construction of a phase diagram of the Y2O3-Fe-Fe2O3 system at 1000℃. Y2O3, Fe, FeO, Fe3O4, Fe2O3, and YFeO3 were found to be stable in the system. Y3Fe5O12 and YFe2O4 were not found in the system. The present results were different form those of previous work at 1200℃, in which YFe2O4 and Y3Fe5O12 were stable together with YFeO3, and also different from those of previous work at 1100℃, in which only Y3Fe5O12 was stable together with YFeO3 as the ternay compounds. Nonstoichiometric ranges were found in the FeO phase, with the composition of FeO represented as a function of log (Po2/atm), No/NFe = 4.635 × 10-2 log Po2 + 1.747. Activities of components in the solid solution were calculated from the equation. YFeO3 lattice constants, prepared in air by the quenching method, were determined and compared with previous values. These were in good agreeement with previous values. The Gibbs energy changes of the reaction 1/2 Y2O3 + Fe + 3/4 O2 = YFeO3, appearing in the phase diagram, were calculated from the oxygen partial pressures in equilibrium, and the value obtained was compared with previous values. | |||||
| 書誌情報 |
新潟工科大学研究紀要 巻 9, p. 19-28, 発行日 2004-12 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1342-792X | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN10590360 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 出版者 | ||||||
| 出版者 | 新潟工科大学 | |||||
