Combustion and characteristics of mechanically activated Ni + Al mixture: Effects of the weight and size of the milling balls

被引：0
|
作者：
N. A. Kochetov
机构：
[1] Russian Academy of Sciences,Institute of Structural Macrokinetics and Materials Science
来源：
Russian Journal of Physical Chemistry B | 2016年 / 10卷
关键词：
SHS; mechanical activation; intermetallic compounds; conductive-convective model of combustion; weight of the balls; size of the balls;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The dependences of the characteristics of a mechanically activated Ni + Al mixture and a Ni + Al mixture additionally activated in water (dispersion) on the weight and diameter of the steel balls used in the activation are studied. The burning velocity, size of the composite particle formed during activation, microstructure of the composite particles, crystal structure of the activated mixture, density of the pressed samples, and their elongation during combustion are examined. The possibility of modifying the characteristics of the activated and dispersed mixtures by changing the weight of the balls used in the activation is demonstrated. The properties of the activated mixtures are shown to be unaffected by the diameter of the balls. The dependences of the burning velocity on the experimental parameters are interpreted within the framework of the convective-conductive model of combustion.
引用
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页码：639 / 643
页数：4
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