One of my friends here has been having some issues getting a clean, reliable start on a motor, so I suggested using a thermite igniter to get things moving quickly. Seeking some evidence to use for convincing the higher-ups, we did some high speed videos of a couple thermite igniters to see what goes on. We fired a standard copper thermite compound, as well as one based on manganese dioxide and aluminum. Each shot was 5 grams of material. The CuO igniter was filmed at 2000 frames per second, and the MnO₂ at 10,000 frames per second. I also sped up the MnO₂ video and stuck the shots next to each other, to allow easier comparison between the two types.

CuO/Al (2k fps):

MnO₂/Al (10k fps):

Comparison of both types (2k fps):

Posted July 16, 2010 in Ignition, Media. Add Comment / Trackback