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The values of electromotive force for the following reversible galvanic cell have been determined in the temperature range 700° to 980℃. Al(l)|KCl+NaCl, AlCl_3|Al-Au(l). In the Al-Au system, an intermetallic compound AuAl_2 having a melting point of 1060℃ is formed. For the composition range near this compound, measurements were done by the distribution method at 1100℃, because the emf measurement cannot be used at high temperature. The derived activities of aluminum and gold exhibit large negative deviations from Raoult\u0027s law, the activity coefficients determined at infinite dilution being 0.00013 and 0.0025 at 1100℃ for aluminum and gold, respectively. The activities of the two components have also been calculated from the heats of fusion of two intermetallic compounds, AuAl_2 and Au_2Al, the values being in reasonable agreement with measured ones. 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<報文>起電力および分配平衡の測定によるAl-Au系二元合金の熱力学的研究
http://hdl.handle.net/10097/32559
http://hdl.handle.net/10097/32559ecd688c1-f9f0-4af3-9248-0a481e5de197
名前 / ファイル | ライセンス | アクション |
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KJ00000134833.pdf (429.5 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2008-05-02 | |||||
タイトル | ||||||
タイトル | <報文>起電力および分配平衡の測定によるAl-Au系二元合金の熱力学的研究 | |||||
言語 | ||||||
言語 | jpn | |||||
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 |
李, 容根
× 李, 容根× 矢沢, 彬 |
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著者(ヨミ) | ||||||
姓名 | LEE, Yong Keun | |||||
著者(ヨミ) | ||||||
姓名 | YAZAWA, Akira | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Thermodynamic properties of the liquid aluminum-gold system have been studied using the electromotive force method and the distribution method. The values of electromotive force for the following reversible galvanic cell have been determined in the temperature range 700° to 980℃. Al(l)|KCl+NaCl, AlCl_3|Al-Au(l). In the Al-Au system, an intermetallic compound AuAl_2 having a melting point of 1060℃ is formed. For the composition range near this compound, measurements were done by the distribution method at 1100℃, because the emf measurement cannot be used at high temperature. The derived activities of aluminum and gold exhibit large negative deviations from Raoult's law, the activity coefficients determined at infinite dilution being 0.00013 and 0.0025 at 1100℃ for aluminum and gold, respectively. The activities of the two components have also been calculated from the heats of fusion of two intermetallic compounds, AuAl_2 and Au_2Al, the values being in reasonable agreement with measured ones. The activity coefficients for this liquid solution have been determined as follows : RT lnγ_<Al>=-8170(1-N_<Al>)^2-16330(1-N_<Al>)^3 RT lnγ_<Au>=-32660(1-N_<Au>)^2+16330(1-N_<Au>)^3 Other various thermodynamic quantities have also been derived and discussed. | |||||
書誌情報 |
東北大學選鑛製錬研究所彙報 = Bulletin of the Research Institute of Mineral Dressing and Metallurgy, Tohoku University 巻 25, 号 1, p. 1-8, 発行日 1969-10-30 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0040876X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00168425 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
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 | |||||
その他の言語のタイトル | ||||||
その他のタイトル | <Original Papers>Thermodynamic Study of the Liquid Aluminum-Gold System | |||||
出版者 | ||||||
出版者 | 東北大學選鉱製錬研究所 | |||||
資源タイプ | ||||||
内容記述タイプ | Other | |||||
内容記述 | 紀要類(bulletin) | |||||
登録日 | ||||||
日付 | 2008-05-02 | |||||
日付タイプ | Created | |||||
公開日(投稿完了日) | ||||||
日付 | 2008-05-02 | |||||
日付タイプ | Created | |||||
発行日 | ||||||
日付 | 1969-10-30 | |||||
日付タイプ | Created | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | 429526 bytes | |||||
公開範囲 | ||||||
値 | 学外 | |||||
更新日 | ||||||
日付 | 2010-01-27 | |||||
日付タイプ | Created |