Thermogravimetric and DSC Studies of Mixtures of Aluminum Powder with Low-Molecular Organic Compounds after Plastic Deformation under High Pressure

被引:3
作者
Zhorin, V. A. [1 ]
Kiselev, M. R. [2 ]
Kotenev, V. A. [2 ]
机构
[1] Russian Acad Sci, Semenov Fed Res Ctr Chem Phys, Moscow 119991, Russia
[2] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, Moscow 119071, Russia
关键词
Mixtures;
D O I
10.1134/S2070205120050317
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
Powdered mixtures of aluminum with 20 wt % of organic components were subjected to plastic deformation under a pressure of 0.5-4.0 GPa on an anvil-type high-pressure apparatus and then investigated by thermogravimetry and DSC. In deformed mixtures in the T-range of 30-500 degrees C, there was a decrease in mass associated with the decomposition of organic components, while there was an increase in mass associated with the oxidation of aluminum in the T-range of 500-800 degrees C. The mass changes were accompanied by exothermic effects. The enthalpies of exoeffects in the high-temperature range were always higher than in the low-temperature range. The magnitudes of exothermic effects depended on the content of carbon and oxygen in organic molecules; in a series of organic acids, they depended on the pH of acids.
引用
收藏
页码:957 / 964
页数:8
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