A micro initiator realized by reactive Ni/Al nanolaminates

Document Type

Article

Publication Date

12-1-2012

Abstract

This study described a micro initiator realized by reactive Ni/Al nanolaminates.Aself-propagating reaction can be triggered in the Ni/Al film by applying a DC voltage of 1.5 V. This exothermic reaction can raise the temperature of the film (10 μmin thickness) surface to as high as 622 K. The measured ignition power to start the self-propagating reaction in the film was 3 mWwith an ignition delay of around 0.63 s. The small ignition energy required and the large energy output make the Ni/Al film superior to the current resistive heater based initiators. Numerical simulation results demonstrated that different temperatures can be achieved by simply alternating the film thickness and the localization of high temperature exposure was realized to avoid unintentional fire of adjacent initiators. These findings were confirmed by the experiment using thermal indicators. © Springer Science+Business Media, LLC 2012.

Publication Source (Journal or Book title)

Journal of Materials Science: Materials in Electronics

First Page

2140

Last Page

2144

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