Abstract
This article describes the electro-explosive behaviors and the ignition performances of energetic igniters based on the combination of polysilicon film with Al/CuO nanoenergetic multilayer films (nEMFs).The ultra-high-speed framing camera images show that melting first occurs at the V-type angles and then expands to the entire bridge. The Al/CuO nEMF is heated and fired from below, forced to form lots of flyers with different sizes, ejected with the expansion of polysilicon plasma, and reacts exothermically to release a large quantity of energy. Furthermore, temperature diagnosis results demonstrate higher temperature products of energetic igniters. Ignition experiment at a standoff of 1.5 mm results show that the average firing voltage and the variance of energetic igniters are 28.50 V and 0.96, whereas those of polysilicon igniters are 32.05 V and 1.94.
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