Abstract

The sensitivity of pentaerythritol tetranitrate (PETN) to small scale flyer plate impact has been assessed over the specific surface area (SSA) range 0.1 to 2.5 m2/g and for pressing densities ranging from 85% to 97% theoretical maximum density. The sensitivity was found to depend on SSA/mean particle size and density. The highest sensitivity was found at high SSA/low mean particle size and low density. Below a SSA of 0.75 m2/g or above a mean particle size of 30 μ m, spot size effects appeared to have determined the ease with which PETN was detonated.

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