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Thermogravimetric Study of the Ln2O3-Co-Co2O3 System Ln=Sm at 1000℃
https://niit.repo.nii.ac.jp/records/76
https://niit.repo.nii.ac.jp/records/7616fa7f17-a325-4596-9fe7-342480dc86f0
名前 / ファイル | ライセンス | アクション |
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2011_1_niit1_090.pdf (390.2 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2011-11-18 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Thermogravimetric Study of the Ln2O3-Co-Co2O3 System Ln=Sm at 1000℃ | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | Thermogravimetry | |||||
キーワード | ||||||
主題 | phase equilibrium | |||||
キーワード | ||||||
主題 | Sm-Co oxide | |||||
キーワード | ||||||
主題 | Standard Gibbs energy change of reaction | |||||
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× Kitagawa, Daisuke× Sasaki, Hiroshi |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Phase equilibrium is established in a system Sm-Co-O at 1000℃ by changing the oxygen partial pressure from 0 to 13.00 in-log (Po_2/atm), and a phase diagram is represented for a Sm_2O_3-Co-Co_2O_3 system. Under the experimental conditions, Sm_2O_3, CoO, Co, and SmCoO_3 phases are present. But Sm_2CoO_4 and Sm_4Co_3O_10 phases are not stable in the system. A slight nonstoichiometry is found in CoO and SmCoO_3 phases, and the nonstoichiometry of SmCoO_3 is discussed with respect to the oxygen partial pressure, and the activities of the components in the solid solutions are calculated using the composition-oxygen partial pressure relations obtained. Lattice constants of SmCoO_3, made in different oxygen partial pressures, are determined and compared with those values prepared at 1200℃. Standard Gibbs energy changes of the reactions in the phase diagram are calculated with the oxygen partial pressure in equilibrium with solids, and these are compared with previous values. | |||||
書誌情報 |
新潟工科大学研究紀要 巻 6, p. 21-26, 発行日 2001-12 |
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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 |