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Theoretical analysis of the temperature and pressure dependences of the viscosity in supercooled liquids
http://hdl.handle.net/2298/15172
http://hdl.handle.net/2298/1517290052652-ced5-4ef2-889e-d4fe59514a3e
名前 / ファイル | ライセンス | アクション |
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Manuscript J Phys Conf Ser 215 _2010_ 012075 _Ikeda, Aniya-r.pdf (248.3 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2010-07-01 | |||||
タイトル | ||||||
タイトル | Theoretical analysis of the temperature and pressure dependences of the viscosity in supercooled liquids | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ | journal article | |||||
著者 |
Aniya, Masaru
× Aniya, Masaru× Ikeda, Masahiro |
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別言語の著者 |
安仁屋, 勝
× 安仁屋, 勝× Ikeda, Masahiro |
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内容記述 | ||||||
内容記述 | In this paper, a method to analyze the temperature and pressure dependences of the viscosity or of the structural relaxation time in supercooled liquids is shown from the point of view of chemical bonding. The model used in this analysis is the Bond Strength–Coordination Number Fluctuation (BSCNF) model originally proposed by one of the authors. A theoretical relationship between the Vogel temperature T0 of the well-known Vogel-Flucher-Tammann (VFT) equation and our model parameters which contain some microscopic information on bonding connectivity among the structural units that form the melt has been obtained. Using the theoretical relationship, we analyzed the dynamics of two kinds of molecular glass forming liquids under pressure, (a) 4,4'-methylenebis(N,N-diglycidylaniline), and (b) BMPC: 1,1'-di(p-methoxyphenyl)cyclohexane. The result obtained suggests that by applying pressure in these materials, the intermolecular cooperativity is suppressed due to increases in the mean total bond strength and the fluctuations of the structural units. | |||||
書誌情報 |
Journal of Physics: Conference Series 巻 215, 号 1, 発行年 2010-03-23 |
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DOI | ||||||
関連タイプ | isVersionOf | |||||
関連識別子 | 10.1088/1742-6596/215/1/012075 | |||||
情報源(ISSN) | ||||||
関連名称 | 1742-6588 | |||||
フォーマット | ||||||
内容記述 | application/pdf | |||||
形態 | ||||||
248269 bytes | ||||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
日本十進分類法 | ||||||
主題 | 420 | |||||
出版者 | ||||||
出版者 | Institute of Physics | |||||
資源タイプ | ||||||
内容記述 | 論文(Article) | |||||
資源タイプ・ローカル | ||||||
雑誌掲載論文 | ||||||
資源タイプ・NII | ||||||
Journal Article | ||||||
資源タイプ・DCMI | ||||||
text | ||||||
資源タイプ・ローカル表示コード | ||||||
01 | ||||||
URL | ||||||
内容記述 | http://iopscience.iop.org/1742-6596/215/1/012075 |