Optical ignition of nanoenergetic materials: The role of single-walled carbon nanotubes as potential optical igniters

Micro- and Nanoscale Energetic Materials as Effective Heat Energy Sources for Enhanced Gas Generators

“…We performed a series of ignition tests for various mixing ratios of NaN 3 /Al/CuO reactants. For the ignition tests, the mixing ratio of Al and CuO was always kept with Al:CuO = 30:70 wt % because it was the optimized mixing ratio for effectively generating heat energy when ignited. ,, Specifically, we observed that the composites were not stably ignited in the cases of NaN 3 :Al:CuO = 90:3:7 and 83:5:12 wt %. When the mixing ratio was reached to a NaN 3 :Al:CuO = 77:7:16 wt %, the composite was started to be stably ignited and actively generate gas byproducts.…”

“…Energetic materials are mixtures of fuel and oxidizing materials that rapidly release heat and gas byproducts when ignited by external energy input. − The amount of thermal energy generated by energetic materials depends on the interfacial contact area and degree of intermixing between the fuel and oxidizing materials, the chemical compositions, and the size of the reacting materials. − In most formulations, macro- and microscale Al as a highly reactive and readily available material is used for the fuel materials, and various low-cost metal oxides (e.g., Fe 2 O 3 , KMnO 4 , CuO, MoO 3 ) are used for energetic oxidizers. − …”

Highly energetic compositions based on functionalized carbon nanomaterials

“…In particular, SWCNTs are the best choice for this purpose and it has been demonstrated that the burn rate and pressurization rate of SWCNTs/Al/CuO nanocomposites achieve maximum values of about 240 ms −1 and 5.9 ± 0.8 psi μs −1 , respectively, when the content of SWCNT is just 1 wt%. 280 The preparation method of SWCNTs/Al/CuO nanocomposites, their morphology and flash irradiation ignition process are shown in Fig. 37.…”

Combustion Performance Improvement of Energetic Thin Films Using Carbon Nanotubes

“…7 Kim et al used CNTs as optical igniters to initiate mixtures of Al and copper oxide (CuO). 8 Guo et al replaced copper thin film microbridge electropyrotechnics with CNTs combined with potassium nitrate and found that CNTs initiated the ceramic substrate using lower input energy, making it more sensitive. 9 Collins et al showed decreased ESD sensitivity in Al/CuO with the addition of CNTs.…”