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<報文>還元酸化の繰返えしが酸化ウラン粉末の反応活性におよぼす影響について
http://hdl.handle.net/10097/32388
http://hdl.handle.net/10097/32388beb2491e-a284-457a-85f9-f70ba3758581
名前 / ファイル | ライセンス | アクション |
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KJ00000134379.pdf (533.0 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>還元酸化の繰返えしが酸化ウラン粉末の反応活性におよぼす影響について | |||||
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× 増子, 昇 |
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著者(ヨミ) | ||||||
姓名 | SUDO, Kingo | |||||
著者(ヨミ) | ||||||
姓名 | MASUKO, Noboru | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | With the object of interpreting the known phenomenon that the repetition of successive reduction and oxidation would make uranium oxide powder more voluminous and chemically active, studies were made of the influence of this treatment upon the rate constant of the reduction of U_3O_8 to UO_2 by hydrogen. The following rate formula was given for the analysis of the present data : (1-c)^<1.3> = 1-kt where c is the fraction of oxide after the lapse of a definite time interval t and k is the rate constant. When reduction and oxidation were repeated successively, the rate constant increased, and after several repetitions it reached a definite value. This increase was mainly due to the increase in the total surface area caused by destruction of the powder. After the hydrogen pretreatment at various temperatures, the rate constants were determined at 500℃, and it was found that the higher the pretreatment temperature was, the smaller the first value of the rate constant was and that after several repetitions any powder showed the same value. Therefore when the properties of uranium oxide powder are to be studied, the above method may be recommended as a pretreatment for eliminating most of the effects caused by the preparation methods. It was also pointed out that this treatment improved the sinterbility and that this was of interest industrially. | |||||
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 17, 号 1, p. 29-36, 発行日 1961-08-31 |
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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>On the Activation of Uranium Oxide Powder by the Repetition of Successive Reduction and Oxidation | |||||
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 | 1961-08-31 | |||||
日付タイプ | Created | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | 532990 bytes | |||||
公開範囲 | ||||||
値 | 学外 | |||||
更新日 | ||||||
日付 | 2010-01-27 | |||||
日付タイプ | Created |