Thermal explosion in mechanoactivated 3Ni + Al mixtures

被引:0
|
作者
M. A. Korchagin
V. Yu. Filimonov
E. V. Smirnov
N. Z. Lyakhov
机构
[1] Russian Academy of Sciences,Institute of Solid State Chemistry and Mechanochemistry
[2] Siberian Branch,undefined
[3] Altai State Technical University,undefined
关键词
SHS; thermal explosion; mechanical activation; 81.20 Ka; 81.20Wk; 64.70kd;
D O I
10.3103/S1061386209020113
中图分类号
学科分类号
摘要
Explored was thermal explosion in mechanoactivated 3Ni + Al mixtures. Mechanoactivation was found to result in an abnormal decrease in the effective activation energy E and ignition temperature Tign for thermal explosion. Analysis of reaction thermogram allowed us to find out the kinetic function. Mechanoactivation conditions for synthesis of Ni3Al in thermal explosion mode have been optimized. SHS reaction in 3Ni + Al mixtures mechanoactivated for 180 s was found to obey the first-order kinetics.
引用
收藏
页码:133 / 136
页数:3
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