Integration of the 3DOM Al/Co₃O₄ nanothermite film with a semiconductor bridge to realize a high-output micro-energetic igniter

Abstract

A micro-energetic igniter integrated with a 3DOM Al/Co3O4 nanothermite film is able to generate larger spark and realize gap ignition.

A Facile Preparation and Energetic Characteristics of the Core/Shell CoFe2O4/Al Nanowires Thermite Film

“…It could be attributed to not only the oxidation of the nano-Al layer but also a nonstoichiometric ratio for a complete reaction between Al and CoFe2O4 in the CoFe2O4/Al nanothermite film [27]. Despite all these, the energy release for CoFe2O4/Al NWs investigated in this work is larger than that of reported thermites, such as assembly Fe2O3/Al (2088 J•g −1 ) [38], sol gel Fe2O3/Al (1686 J•g −1 ) [38], physical mixing Fe2O3/Al (1097 J•g −1 ) [38] and porous Co3O4/Al (1740 J•g −1 ) [39]. To acquire the preferable energy release of CoFe 2 O 4 /Al NWs nanothermite films, the different thicknesses of 200, 400 and 600 nm are tested for the Al deposition on a flat surface, respectively.…”

“…Fe 2 O 3 /Al (2088 J•g −1 ) [38], sol gel Fe 2 O 3 /Al (1686 J•g −1 ) [38], physical mixing Fe 2 O 3 /Al (1097 J•g −1 ) [38] and porous Co 3 O 4 /Al (1740 J•g −1 )[39].The enhanced released heat of the CoFe 2 O 4 /Al NWs nanothermite film could be ascribed to the following reasons. Firstly, the obtained CoFe 2 O 4 /Al NWs are of excellent spatial uniformity.…”

An energetic composite formed of wrinkled rGO sheets wrapped around copper azide nanowires with higher electrostatic safety as a green primary explosive

“…Moreover, the energy density of lead-containing primary explosives can hardly meet the requirements of the micro-initiator for energy due to the miniaturization of the ignition device. [8][9][10][11][12] Hence, developing a green substitute for lead-based primary explosives with high safety and energy density is urgently needed.…”

Energetic Films Realized by Encapsulating Copper Azide in Silicon-Based Carbon Nanotube Arrays with Higher Electrostatic Safety

“…The currently used lead-based primary explosives can hardly meet the requirements of the micro-initiator for energy due to the miniaturization of the ignition device. There is an urgent need to find an environmentally friendly substitute with higher safety and energy density [5][6][7][8][9][10]. Energetic films can be integrated directly on the ignitor without manipulating dangerous reactants [11,12], which makes the process safe and attractive for commercial products.…”