Shock-Wave Initiation of Exothermic Reactions in W-Al-PTFE Reactive Materials

Thermodynamic calculations of the adiabatic temperatures and probable compositions of the combustion products in the W-PTFE and W-Al-PTFE systems were performed. Powdered reactive compacts were produced. The shock-wave loading of reactive materials in the W-Al-PTFE system was studied. It was shown that the systems based on tungsten and polytetrafluoroethylene are generally difficult to initiate; nonetheless, the addition of aluminum increases their shock-wave sensitivity and makes it possible to reach the calculated combustion temperatures more than 3000 K, which enables one to consider such mixtures promising for the development of high-density reactive materials.