Effect of Process Parameters on the Properties of Direct Written Gas-Generating Reactive Layers

A mixture of copper complex and Al/CuO nanothermite, Al/CuO/CuC, represents one the state-of-the-art gas-generating thermite systems with various pyrotechnic applications due to its tunable gas release rates. The reactivity reactive inks loadings poly(vinylpyrrolidone) (PVP) binder mixed Al/CuO/CuC is characterized using high-speed imaging diagnostics pressure measurements. For a PVP mass fraction <7 wt %, printed materials remain highly burn at high velocity (10–54 m/s), which was important goals this study. At higher contents, polymer inhibits reaction. Printing (dropwise continuously writing) containing 5 % 95 powder demonstrated volumetrically controlled dispenser pneumatically actuated syringe. development burning rate are 0.37 MPa (at 46.3% theoretical maximum density (TMD)) 17 m/s 0.24% TMD), respectively, more than 10 times faster majority works dealing energetic formulations.