Macrokinetics of oxidation of ultradisperse aluminum by water in the liquid phase

被引：41
|
作者：
Ivanov, VG [1 ]
Safronov, MN [1 ]
Gavrilyuk, OV [1 ]
机构：
[1] Russian Acad Sci, Inst Petr Chem, Siberian Div, Tomsk 634021, Russia
来源：
COMBUSTION EXPLOSION AND SHOCK WAVES | 2001年 / 37卷 / 02期
关键词：
Oxidation; Hydrogen; Aluminum; Combustion; Dynamical System;
D O I：
10.1023/A:1017505709456
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The processes of oxidation of electroexplosive ultradisperse powders (UDP) of aluminum by water in the range of temperatures 50-75 degreesC are studied by the method of continuous recording of gas release. It is shown that the electroexplosive UDP of aluminum are capable to be actively oxidized by water with the formation of oxide-hydroxide phases and hydrogen release already upon moderate heating. At temperatures higher than 75 degreesC the oxidation occurs like a degenerate thermal explosion. The macrokinetic parameters of the oxidation of aluminum UDP are determined. The data obtained call be used to assess the fire hazard of UDP in the presence of moisture and analyze the combustion of aluminum UDP in the composition of energy materials.
引用
收藏
页码：173 / 177
页数：5
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