| SiC纤维增强Ti基复合材料界面反应化学动力学研究 |
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| 引用本文： | 朱艳,杨延清. SiC纤维增强Ti基复合材料界面反应化学动力学研究[J]. 纺织高校基础科学学报, 2012, 0(4): 494-497 |
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| 作者姓名： | 朱艳 杨延清 |
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| 作者单位： | 西安工程大学环境与化学工程学院;西北工业大学材料科学与工程学院 |
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| 基金项目： | 国家自然科学基金资助项目(50873081);陕西省教育厅专项基金资助项目(11JK0841) |
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| 摘 要： | 通过建立SiC纤维增强Ti基复合材料界面反应化学动力学模型，运用量子化学理论计算速率常数和活化能，揭示SiC纤维增强Ti基复合材料界面反应机理．研究显示，原子Ti，C，Si分别从Ti基体和SiC纤维分解反应的第一步骤为动力学控制步骤，其活化能远远大于界面反应产物生成的第二步骤的活化能，理论预测与实验结果吻合很好．
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| 关 键 词： | SiC纤维增强Ti基复合材料 界面反应 量子化学 动力学 |
Study on chemical kinetic of interfacial reaction of SiC/Ti composite |
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| ZHU Yan,YANG Yan-qing. Study on chemical kinetic of interfacial reaction of SiC/Ti composite[J]. Basic Sciences Journal of Textile Universities, 2012, 0(4): 494-497 |
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| Authors: | ZHU Yan YANG Yan-qing |
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| Affiliation: | 1.College of Environmental and Chemical Engineering,Xi′an Polytechnic University,Xi′an 710048,China; 2.School of Materials,Northwestern Polytechnical University,Xi′an 710072,China) |
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| Abstract: | The chemical kinetic model of SiC/Ti was built up. Rate constant and activity energy were cal- culated and interfacial reaction mechanism of SiC/Ti was studied. The result showes that the control step was that atom Ti,C,Si decomposed from Ti base and SiC fiber. The activity energy of the control step is far larger than that of interracial production formation. The theory forecast is in agreement with experi- ment. |
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| Keywords: | SiC/Ti composite interracial reaction quantum chemistry kinetics |
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