Explosive Burning of a Mechanically Activated Al and CuO Thermite Mixture

Abstract

The results of experiments to determine the role of structural schemes for the ignition of a mechanically activated thermite mixture Al–CuO and the formation of its combustion flame are presented. The reaction initiated in the bulk of the experimental assembly transforms into torch combustion in an open space. The dynamics of the volume of the flame reaction region was determined. The stage of flame formation has a stochastic character, determined by the random distribution of the reaction centres in the initial volume of the components. A high-speed camera, a pyrometer and electro contact sensors were used as diagnostic tools. The ultimate goal of the study was to optimize the conditions for the flame formation of this mixture for its effective use with a single ignition of various gas emissions.

Highly Reactive Thermite Energetic Materials: Preparation, Characterization, and Applications: A Review

“…Until now, energetic materials, particularly tEMs, have been extensively reported and fabricated via different preparation methods, owing to their wide range of application, which include the defense industry, detonators [ 128 , 129 , 130 , 131 ], igniters [ 132 , 133 ], gas sensors [ 77 , 134 , 135 , 136 , 137 ], thin-film battery [ 138 ] and chip adhesive [ 139 ]. Beyond that, the design of an all-solid-state lithium/electrolyte interface was realized by inducing an energetic reaction between metal fuel and nitrate, showing high capacity, small overpotential, high efficiency, and a long cycle life [ 140 ].…”

Study on combustion characteristics and pyrotechnic cutting effects of bimetal thermite Ni/Al/Fe2O3 system

“…For instance, in civil applications, the high heat generated from thermite combustion plays a vital role in the synthesis of new materials and has been widely employed in metal welding, metallurgy, and other industries [3]. Simultaneously, thermite has emerged as a crucial area of focus in the field of energetic materials, particularly within military applications, due to its exceptional energy density and reactivity [4]. In recent years, thermite has found widespread usage in propellant, explosive, electric ignition and other military fields.…”