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<報文>溶融状態におけるNa_2O-B_2O_3-SiO_2系の粘度測定とガラス状態における粘度との比較
http://hdl.handle.net/10097/32944
http://hdl.handle.net/10097/32944191845bb-f41c-4e7e-afa1-556172b574b8
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00000135452.pdf (512.5 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>溶融状態におけるNa_2O-B_2O_3-SiO_2系の粘度測定とガラス状態における粘度との比較 | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | viscosity | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | sodium boro-silicate | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | molten state | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | glassy state | |||||
| 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× 小川, 浩 |
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| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 124791 | |||||
| 姓名 | SHIRAISHI, Yutaka | |||||
| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 124792 | |||||
| 姓名 | OGAWA, Hiroshi | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The viscosity of molten sodium borosilicate system has been measured by a rotating cylinder viscometer, "Rotovisco", using platinum rotor and crucible in a viscosity range from 10^1 to 10^<3.5> poise. The obtained results are compared with the viscosity of the glassy state measured previously by a parallel plate viscometer. The following results are derived from the comparison. (1) Fulcher function, logη=A+B/(T-T_0), adequately represents the measured viscosity in the range from 10^1 to 10^<10> poise. (2) Apparent activation energy of viscous flow varies from 100-200kcal/mol in the glassy state to 20-30kcal/mol in the molten state. (3) Composition dependency of viscosity changes around the composition Na_2O/B_2O_3≅1 both in the glassy and molten states. However, such effect is very small in the molten state compared with that of the glassy state. (4) In the region of silica rich composition, the effect of B_2O_3 on viscosity is opposite in glassy and in molten states. Namely, viscosity increases with increase in B_2O_3 content in glassy state, but it decreases in molten state. (5) This contradictory effect of B_2O_3 on viscosity at both states suggests a change in bonding at both states as partially supported by available data of thermal expansivity in which expansivity shows a completely different manner on dependency of B_2O_3 content below and above the glass transition temperature. | |||||
| 書誌情報 |
東北大學選鑛製錬研究所彙報 en : Bulletin of the Research Institute of Mineral Dressing and Metallurgy, Tohoku University 巻 44, 号 1, p. 8-14, 発行日 1988-09-30 |
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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>Viscosity Measurement of Molten Na_2O-B_2O_3-SiO_2 System and Comparison of Viscosity in Molten and Glassy 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 | 1988-09-30 | |||||
| 日付タイプ | Created | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 512536 bytes | |||||
| 更新日 | ||||||
| 日付 | 2010-01-27 | |||||
| 日付タイプ | Created | |||||
