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Thermal explosion in mechanoactivated 3Ni + Al mixtures |
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| Authors: | M A Korchagin V Yu Filimonov E V Smirnov N Z Lyakhov |
| Affiliation: | (1) Institute of Solid State Chemistry and Mechanochemistry, Russian Academy of Sciences, Siberian Branch, ul. Kutateladze 18, Novosibirsk, 630128, Russia;(2) Altai State Technical University, ul. Lenina 61, Barnaul, 656049, Russia |
| Abstract: | 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. |
| Keywords: | SHS thermal explosion mechanical activation |
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