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The temperature dependence of viscosty was expressed by the Arrhenius type equation. Generally, viscosity and activation energy for viscous flow of the glass melted in vacuum were higher than those of the glass melted in air. The most pronounced finding was absence of the \"mixed alkali effect\" in viscosity no marked minimum was observed on the curves relating log viscosity with the alkali ratio R/(R+R\u0027), in contrast with the general belief based on the fact the log viscosity isotherms of \u003cspecial\u003eNa2O-K2O-SiO2\u003c/special\u003e and other glasses showed a pronaunced minimum. In other words, the minimum would be present only in a limited number of systems. As to variation of viscosity with the total alkali content, it was found that viscosity of \u003cspecial\u003exNaKO・(100-x)B2O3\u003c/special\u003e glasses shows a maximum at 25 mol% alkali oxide in the same fashion as single alkali borate glasses. These results would imply that the structural interpretation of viscosity of mixed alkali glasses could be based on the structural concept developed for single alkali glasses.", "subitem_description_type": "Abstract"}]}, "item_4_publisher_30": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "Faculty of Engineering, Mie University"}]}, "item_4_source_id_7": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0385-6208", "subitem_source_identifier_type": "PISSN"}]}, "item_4_source_id_9": {"attribute_name": "書誌レコードID", "attribute_value_mlt": [{"subitem_source_identifier": "AA00816341", "subitem_source_identifier_type": "NCID"}]}, "item_4_text_18": {"attribute_name": "その他のタイトル", "attribute_value_mlt": [{"subitem_text_language": "ja", "subitem_text_value": "混合アルカリ硼酸塩ガラスの粘度"}]}, "item_4_text_65": {"attribute_name": "資源タイプ(三重大)", "attribute_value_mlt": [{"subitem_text_value": "Departmental Bulletin Paper / 紀要論文"}]}, "item_access_right": {"attribute_name": "アクセス権", "attribute_value_mlt": [{"subitem_access_right": "metadata only access", "subitem_access_right_uri": "http://purl.org/coar/access_right/c_14cb"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Sakka, Sumio", "creatorNameLang": "en"}, {"creatorName": "作花, 済夫", "creatorNameLang": "ja"}], "nameIdentifiers": [{"nameIdentifier": "34868", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kamiya, Kanichi", "creatorNameLang": "en"}, {"creatorName": "神谷, 寛一", "creatorNameLang": "ja"}], "nameIdentifiers": [{"nameIdentifier": "34869", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Matusita, Kazumasa", "creatorNameLang": "en"}, {"creatorName": "松下, 和正", "creatorNameLang": "ja"}], "nameIdentifiers": [{"nameIdentifier": "34870", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Okamura, Tsuneyoshi", "creatorNameLang": "en"}, {"creatorName": "岡村, 常良", "creatorNameLang": "ja"}], "nameIdentifiers": [{"nameIdentifier": "34871", "nameIdentifierScheme": "WEKO"}]}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Viscosity of Mixed-Alkali Borate Glasses", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Viscosity of Mixed-Alkali Borate Glasses", "subitem_title_language": "en"}]}, "item_type_id": "4", "owner": "13", "path": ["369"], "permalink_uri": "http://hdl.handle.net/10076/3818", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2018-03-15"}, "publish_date": "2018-03-15", "publish_status": "0", "recid": "4711", "relation": {}, "relation_version_is_last": true, "title": ["Viscosity of Mixed-Alkali Borate Glasses"], "weko_shared_id": -1}
Viscosity of Mixed-Alkali Borate Glasses
http://hdl.handle.net/10076/3818
http://hdl.handle.net/10076/3818bd3c2eb8-f291-4fc1-b7ec-3f639489de92
Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2018-03-15 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Viscosity of Mixed-Alkali Borate Glasses | |||||
言語 | ||||||
言語 | eng | |||||
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 | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
作花, 済夫
× 作花, 済夫× 神谷, 寛一× 松下, 和正× 岡村, 常良 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The low temperature viscosity in the range of <special>10 7~10 11</special> poises was measured using the penetration viscometer for glasses of the series <special>xNa2O・(10-x)K2O・90B2O3, xNa2O・(20-x)K2O・80B2O3, xLi2O・(10-x)K2O・90B2O3, xLi2O・(20-x)K2O・80B2O3 and xNaKO・(100-x)B2O3</special> prepared by melting in vacuum. The temperature dependence of viscosty was expressed by the Arrhenius type equation. Generally, viscosity and activation energy for viscous flow of the glass melted in vacuum were higher than those of the glass melted in air. The most pronounced finding was absence of the "mixed alkali effect" in viscosity no marked minimum was observed on the curves relating log viscosity with the alkali ratio R/(R+R'), in contrast with the general belief based on the fact the log viscosity isotherms of <special>Na2O-K2O-SiO2</special> and other glasses showed a pronaunced minimum. In other words, the minimum would be present only in a limited number of systems. As to variation of viscosity with the total alkali content, it was found that viscosity of <special>xNaKO・(100-x)B2O3</special> glasses shows a maximum at 25 mol% alkali oxide in the same fashion as single alkali borate glasses. These results would imply that the structural interpretation of viscosity of mixed alkali glasses could be based on the structural concept developed for single alkali glasses. | |||||
書誌情報 |
Research reports of the Faculty of Engineering, Mie University 巻 1, p. 47-58, 発行日 1976-12-01 |
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ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0385-6208 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00816341 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
その他のタイトル | ||||||
ja | ||||||
混合アルカリ硼酸塩ガラスの粘度 | ||||||
出版者 | ||||||
出版者 | Faculty of Engineering, Mie University | |||||
資源タイプ(三重大) | ||||||
Departmental Bulletin Paper / 紀要論文 |