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<報文>酸化ウランに関する基礎的研究(第2報) : UO_2,U_4O_9及びU_3O_8間の500-1,200℃に於ける平衡の測定
http://hdl.handle.net/10097/32374
http://hdl.handle.net/10097/3237452b3723a-a2e1-4517-a8e0-4e09709097d8
名前 / ファイル | ライセンス | アクション |
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KJ00000134359.pdf (400.7 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>酸化ウランに関する基礎的研究(第2報) : UO_2,U_4O_9及びU_3O_8間の500-1,200℃に於ける平衡の測定 | |||||
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 |
須藤, 欽吾
× 須藤, 欽吾× 木越, 旭一 |
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著者(ヨミ) | ||||||
姓名 | SUDO, Kingo | |||||
著者(ヨミ) | ||||||
姓名 | KIGOSHI, Akiichi | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Oxidation and reduction equilibria among UO_2,U_4O_9 and U_3O_8 were measured with a flow method up to 1,200℃. It was found from the present results that the knowledge about relation-ship among p_<O_2>, O/U ratio and temperature in the 1st report could be extended to higher temperatures, and a new phase diagram of UO_2-U_3O_8 system was proposed. In this temperature and composition range, there are three uranium oxides ; UO_2,U_4O_9 and U_3O_8. UO_2 increases its oxygen solubility with rising temperature above 580℃, and below this temperature, the solubility increases with lowering temperature. The oxygen rich side of this region is heterogeneous and expressed as UO_<2+x>+U_4O_9. Its upper limit was found to be 1,073℃. The temperature dependence of oxygen potential was given by the following equations : 2U_4O_9=8UO_2 (saturated with O)+O_2,log P_<O_2>=-53,158/T+17.059 logT-0.02713T+17.715. Above 800℃ it may be simplified as follows : logP_<O_2>=-21,884/T+11.265. In the composition range of U_4O_9-U_3O_8,it was found to be homogeneous solid solution up to 1,200℃. | |||||
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 16, 号 2, p. 109-115, 発行日 1961-02-24 |
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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>Fundamental Studies on Uranium Oxides.(2) : Equilibria among UO_2,U_4O_9 and U_3O_8 at 500-1,200℃ | |||||
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 | 1961-02-24 | |||||
日付タイプ | Created | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | 400672 bytes | |||||
公開範囲 | ||||||
値 | 学外 | |||||
更新日 | ||||||
日付 | 2010-01-27 | |||||
日付タイプ | Created |