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<報文>MgF_2-CaF_2系の固体および液体のモル体積
http://hdl.handle.net/10097/32748
http://hdl.handle.net/10097/3274896dae4e8-ce7d-4c6c-aaf8-ad96d13e459b
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00000135142.pdf (548.1 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2008-05-02 | |||||
| タイトル | ||||||
| タイトル | <報文>MgF_2-CaF_2系の固体および液体のモル体積 | |||||
| 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 |
白石, 裕
× 白石, 裕× 渡辺, 俊六 |
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| 著者(ヨミ) | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 123749 | |||||
| 姓名 | SHIRAISHI, Yutaka | |||||
| 著者(ヨミ) | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 123750 | |||||
| 姓名 | WATANABE, Shunroku | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The density of the molten MgF_2-CaF_2 system was measured by the Archimedean method with two bobs. In addition, the linear thermal expansivity in the solid state was measured by an improved sessile drop method which consists of an arrangment to observe it from three directions. The density in the solid state was obtained from the expansivity and the density which was measured at room temperature. The eutectic temperature of this system is considerably lower than the melting point of the pure components, about 270℃ lower than the melting point of MgF_2 and about 430℃ lower than that of CaF_2. It is rather difficult, therefore, to discuss the change in volume with composition under isothermal conditions in which only the liquid exists. This is due to the fact that the gap between the above temperature and the liquidus temperature also varies greatly with composition. Thus, it is proposed that the true effect of composition can be observed along a temperature contour directly related to the liquidus curve. It is difficult to define the volume change upon fusion in the case of a solid-liquid mixture due to the the presence of the two, coexisting phases. According to the experimenatal results, the volume change upon fusion can be reasonably defined by extrapolating the liquid volume to the eutectic temperature and comparing this with the solid volume. | |||||
| 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 34, 号 1, p. 1-8, 発行日 1978-09-16 |
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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 Molar Volume of the MgF_2-CaF_2 Binary System in Solid and Liquid States | |||||
| 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 | 1978-09-16 | |||||
| 日付タイプ | Created | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 548055 bytes | |||||
| 更新日 | ||||||
| 日付 | 2010-01-27 | |||||
| 日付タイプ | Created | |||||
