| 热爆反应原位生成TiC的热力学和动力学探讨 |
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| 引用本文： | 李元元,项品峰,龙雁,瞿全炎.热爆反应原位生成TiC的热力学和动力学探讨[J].华南理工大学学报(自然科学版),1999,27(12):7-10. |
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| 作者姓名： | 李元元 项品峰 龙雁 瞿全炎 |
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| 作者单位： | 华南理工大学机电工程系!广州510640 |
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| 摘 要： | 利用Ａｌ－Ｔｉ－Ｃ系热爆反应过程中有关反应的自由能变化和ＤＴＡ曲线，探讨了ＴｉＣ的形成机理。研究结果表明，ＴｉＣ、Ａｌ４Ｃ３和ＴｉＡｌ３都有可能存在于反应过程；
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| 关 键 词： | 热力学 动力学 碳化钛 热爆反应 金属基复合材料 |
STUDY ON THE THERMODYNAMICS AND KINETICS OF IN-SITU TiC PARTICLE FORMATION BY COMBUSTION SYNTHESIS |
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| Li Yuanyuan,Xiang Pinfeng,Long Yan,Qu Quanyan.STUDY ON THE THERMODYNAMICS AND KINETICS OF IN-SITU TiC PARTICLE FORMATION BY COMBUSTION SYNTHESIS[J].Journal of South China University of Technology(Natural Science Edition),1999,27(12):7-10. |
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| Authors: | Li Yuanyuan Xiang Pinfeng Long Yan Qu Quanyan |
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| Abstract: | This paper reports a study on the formation mechanism of TiC particles by the change of free energy of possible reactions in combustion synthesis of Al_Ti_C system as well as DTA curves. The results show that TiC, Al 4C 3 and TiAl 3 may be obtained during the process of reaction. Owing to the exothermic reactions of Al 4C 3 and TiAl 3 formation, the synthesis of TiC tends to complete. A major factor for obtaining TiC/Al composite without by_product is the complete transformation of Al 4C 3 and TiAl 3 to TiC. |
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| Keywords: | thermodynamics kinetics in_situ TiC |
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