| Cr2O3铝热还原制备Cr2O3-Al2O3-Cr金属陶瓷的热分析 |
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| 引用本文： | 钱跃进,蒋明学.Cr2O3铝热还原制备Cr2O3-Al2O3-Cr金属陶瓷的热分析[J].硅酸盐通报,2009,28(2):328-331. |
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| 作者姓名： | 钱跃进 蒋明学 |
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| 作者单位： | 西安建筑科技大学材料科学与工程学院,西安,710055;洛阳理工学院材料科学与工程系,洛阳,471023;西安建筑科技大学材料科学与工程学院,西安,710055 |
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| 摘 要： | 本文从热力学方面讨论金属Al还原Cr2O3,反应,认为其是自蔓燃反应,在特定条件下该反应生成金属陶瓷而不生成CrO.采用DTA确定反应发生温度,并从DTA曲线近似计算该反应的活化能E=1093.822 kJ/mol.
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| 关 键 词： | 热力学 自蔓燃合成 活化能 金属陶瓷 |
Thermal Analysis of Preparation Cr_2O_3-Al_2O_3-Cr Ceramet by Al Deoxidization Chromium Oxide |
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| QIAN Yue-jin,JIANG Ming-xue.Thermal Analysis of Preparation Cr_2O_3-Al_2O_3-Cr Ceramet by Al Deoxidization Chromium Oxide[J].Bulletin of the Chinese Ceramic Society,2009,28(2):328-331. |
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| Authors: | QIAN Yue-jin JIANG Ming-xue |
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| Affiliation: | 1.The Department of Material Science and Technology;Xi'an University of Architecture and Technology;Xi'an 710055;China;2.The Department of Material Science and Technology;Luoyang Institute of Science and Technology;Luoyang 471023; |
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| Abstract: | In this article,the reduction reaction of chromium oxide by metal Al is discussed from thermodynamic factor,and then confirm its being a self-propagating high-temperature synthesis. The production is ceramet other than CrO at special condition. And then the reaction temperature is confirmed by DTA technical,further more the activation enthalpy is calculated approximately by DTA curve. |
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| Keywords: | thermodynamic self-propagating high-temperature synthesis activation enthalpy ceramet |
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