Kinetics of thermite reaction in Al-Fe2O3 system
Kinetics of thermite reaction in Al-Fe2O3 system
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DOI：
10.1016/j.tca.2005.10.020
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发表时间：
2006-01-15
影响因子：
3.5
通讯作者：
Yi, XB
中科院分区：
文献类型：
--
作者：
Fan, RH;Lü, HL;Yi, XB
通过非等温差示扫描量热（DSC）和X射线衍射实验，采用无模型Starink方法对Al-Fe_2 O_3体系的反应动力学进行了分析。在我们的研究中，8Al-3Fe（2）O（3）铝热反应的活化能为145 kJ/mol，该值与Al在FeAl_2 O_4中的扩散活化能相当，但小于Al在Fe_3Al中的扩散活化能，表明Al在FeAl_2 O_4中的扩散控制了铝热反应的产物。(C)2005 Elsevier B. V.保留所有权利。
After non-isothermal differential scanning calorimetry (DSC) and X-ray diffraction experiments are carried out, the reaction kinetics of Al-Fe2O3 system is analyzed by a model-free Starink method. In our study, activation energy was determined as 145 kJ/mol for 8Al-3Fe(2)O(3) thermite reaction, the value is comparable to the activation energy for diffusion of Al in FeAl2O4 and is less than the activation energy for diffusion of Al in Fe3Al, suggesting that the diffusion of Al into FeAl2O4 controls the product of the thermite reaction. (C) 2005 Elsevier B.V. All rights reserved.