| Primary study of the isothermal phase diagram of the Cu2O-Al2O3-SiO2 ternary system at 1150℃ in air |
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| 引用本文： | XIAO Qiuguo ZHAO Xinhua HUANG Ling DENG Xuebin. Primary study of the isothermal phase diagram of the Cu2O-Al2O3-SiO2 ternary system at 1150℃ in air[J]. 稀有金属(英文版), 2007, 26(5): 515-520. DOI: 10.1016/S1001-0521(07)60255-1 |
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| 作者姓名： | XIAO Qiuguo ZHAO Xinhua HUANG Ling DENG Xuebin |
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| 作者单位： | [1]Department of Chemistry, Beijing Normal University, Beijing 100875, China [2]College of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China |
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| 基金项目： | This work was financially supported by the National Natural Science Foundation of China （No. 20471010） and the Scientific Research Fund of Hunan Provincial Education Department （No. 05c173）. |
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| 摘 要： | The isothermal phase diagram of the Cu2O-Al2O3-SiO2 ternary system at 1150℃ was reported for the samples which were prepared from sol-gel method and quenched by water after being heated at 1150℃ for 12 h. Based on the conventional X-ray powder diffraction （XRD） and in situ high-temperature XRD quantitative analysis,in addition to scanning electron microscopy measurement,the phase identification was achieved. Combining the deduction from the component phase diagrams of the binary systems using the phase equilibrium theorem,the primary isothermal phase diagram was plotted over the composition area Cu2O-mullite-SiO2. In this area,the approximate composition areas of two two-phase regions and one three-phase region,（L2＋Cr）,（L2＋M）,and （L1＋L2＋Tr）,were determined. Moreover,the precise composition areas of both of the three-phase regions （L2＋Cr＋M） and （L2＋M＋A） were determined according to the results of conventional and in situ high-temperature XRD quantitative analysis by Rietveld method.
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| 关 键 词： | 材料实验 等温线相位图 X射线衍射 合金 |
| 收稿时间： | 2006-07-03 |
| 修稿时间： | 2006-07-03 |
Primary study of the isothermal phase diagram of the Cu2O-Al2O3-SiO2 ternary system at 1150°C in air |
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| XIAO Qiuguo,ZHAO Xinhua,HUANG Ling,DENG Xuebin,. Primary study of the isothermal phase diagram of the Cu2O-Al2O3-SiO2 ternary system at 1150°C in air[J]. Rare Metals, 2007, 26(5): 515-520. DOI: 10.1016/S1001-0521(07)60255-1 |
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| Authors: | XIAO Qiuguo ZHAO Xinhua HUANG Ling DENG Xuebin |
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| Affiliation: | 1. Department of Chemistry, Beijing Normal University, Beijing 100875, China;2. College of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China;1. Solid State Physics, Lund University, Box 118, SE-22100 Lund, Sweden;2. Polymer and Materials Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden;1. Solid State Physics, Lund University, Box 118, SE-22100 Lund, Sweden;2. Polymer and Materials Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden;1. Aix-Marseille Université/CNRS, LP3 (UMR 7341), 13288 Marseille, France;2. Aix-Marseille Université/CNRS, CINaM (UMR 7325), 13288 Marseille, France;1. Department of Cardiovascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, People’s Republic of China;2. Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, Sichuan, People’s Republic of China |
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| Abstract: | The isothermal phase diagram of the Cu2O-Al2O3-SiO2 ternary system at 1150°C was reported for the samples which were prepared from sol-gel method and quenched by water after being heated at 1150°C for 12 h. Based on the conventional X-ray powder diffraction (XRD) and in situ high-temperature XRD quantitative analysis, in addition to scanning electron microscopy measurement, the phase identification was achieved. Combining the deduction from the component phase diagrams of the binary systems using the phase equilibrium theorem, the primary isothermal phase diagram was plotted over the composition area Cu2O-mullite-SiO2. In this area, the approximate composition areas of two two-phase regions and one three-phase region, (L2 + Cr), (L2 + M), and (L1 + L2 + Tr), were determined. Moreover, the precise composition areas of both of the three-phase regions (L2 + Cr + M) and (L2 + M + A) were determined according to the results of conventional and in situ high-temperature XRD quantitative analysis by Rietveld method. |
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| Keywords: | material experiment isothermal phase diagram X-ray diffraction Cu2O-Al2O3-SiO2 system |
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