Local structure and dynamics of high temperature SrO–Al₂O₃ liquids studied by ²⁷Al NMR and Sr K-edge XAS spectroscopy

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• 作者：Capron ; Mickael ; Florian ; Pierre ; Fayon ; Franck ; Trumeau ; Dominique ; Hennet ; Louis ; Gaihlanou ; Marc ; et. al.
• 关键词：L170 ; N220 ; S150 ; X120
• 刊名：Journal of Non-Crystalline Solids
• 出版年：2001
• 出版时间：November, 2001
• 年：2001
• 卷：293-295
• 期：Complete
• 页码：496-501
• 全文大小：159 K

文摘

In situ spectroscopic studies of liquid oxides at temperatures greater than 2000 °C remain challenging experiments but provide a unique opportunity to better understand their physical properties. Aerodynamic levitation, combined with laser heating, has been conducted with NMR or XAS spectroscopy to obtain the characterisation of local structure and dynamics of very high temperature liquids of the SrO–Al₂O₃ binary system. We present and discuss results obtained using time resolved ²⁷Al NMR in the range 1800–2300 °C for seven different compositions and the first results obtained by Sr K-edge XAS for the SrO–Al₂O₃ binary system.