Propellants Explosives Pyrotechnics, Vol.30, No.6, 425-429, 2005
Ignition characteristics of Ti/Teflon pyrolants: Safety igniter with partition
By using partitions in smoke generators, luminous flame agents or other pyrotechnic agents, the vapor and sublimated materials are confined in a chamber. Titanium (Ti), polytetrafluoroethylene (Teflon), and Viton pyrolants (TTV), which generate high temperature products, can be used in a partition type igniter. The ignition delay time, tau(ig), decreased with the increase of the concentration of Ti, xi(Ti), and also the physical ignition delay time, tau(p), decreased with the increase of xi(Ti). On the other hand the chemical ignition delay time, tau(c), remained unchanged in the range of xi(Ti) from 0.4 to 0.7. As tau(p) of TTV pyrolants is larger than tau(c), the ignition delay time is dominated by physical processes.