Plate Impact Experiments on a Porous Teflon-Aluminum Mixture

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Abstract
Plate impact experiments for nominal pressures of 0.5 and 0.9 GPa were performed on a highly porous Teflon‐Aluminum mixture at 40% TMD to determine the conditions required for the onset of reaction. Shock wave times of arrival for experiments in which the sample was pressed to a uniform density were in close agreement with the inert response predicted by CTH hydrocode modeling using a P‐α model. This indicates that reaction was not observed at the shock front. Reaction was observed after the passage of the initial shock wave. Reaction may also have occurred after the material was shocked to a higher pressure by a second shock wave. Techniques to measure shock‐induced pressure in a low‐density material were developed iteratively.

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