SHS reactions in the NiO-Al system: Influence of stoichiometry

被引：0
|
作者：
D. Vrel
A. Hendaoui
P. Langlois
S. Dubois
V. Gauthier
B. Cochepin
机构：
[1] Université Paris XIII,LIMHP, UPR 1311
[2] Université de Poitiers,CNRS
[3] Bâtiment SP2MI,LMP, UMR 6630
来源：
International Journal of Self-Propagating High-Temperature Synthesis | 2007年 / 16卷 / 2期
关键词：
combustion synthesis; SHS; nickel aluminides; influence of stoichiometry; 81.05.Je; 81.05.Mh; 81.16.Be; 81.20.Ka;
D O I：
10.3103/S1061386207020021
中图分类号：
学科分类号：
摘要：
Thermite reactions in the NiO-Al system have been studied. In addition to the case when the stoichiometry is set up to produce metallic nickel and alumina, we studied the case when Al is added in excess in order to react with the Ni produced through the reduction of nickel monoxide with Al to produce various nickel aluminides. As thermite reactions are highly exothermic, in order to provide a better understanding of the reactions, alumina has been added to the green mixture to reduce the reaction rate and overall exothermicity, in amounts corresponding up to 50% of the overall heat capacity of the sample.
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页码：62 / 69
页数：7
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