Fire mitigation device

A device for initiating burning of an explosive or propellant material prior to detonation, the device comprising at least two materials, one of said materials being more reactive than the other of said at least two materials, at least a first one of said materials melts at a temperature below the detonation temperature of said explosive or propellant material and reacts with said second material to produce an exothermic reaction to cause initiation by burning of said explosive or propellant material, wherein said more reactive material is contained on all sides within a jacket made of said other of said at least two materials wherein at least three materials are employed, one of which is lithium which is contained on all sides within said jacket.

A device for initiating a material comprised of a mixture of nitrocellulose and nitroglycerine prior to detonation, the device comprising at least two materials, one of said two materials comprising sodium metal which melts at a temperature below the detonation temperature of said mixture, said other of said two materials comprising an alloy comprising at least two of the metals selected from the group consisting of bismuth, lead, tin, cadmium, tellurium and antimony, said alloy having a melting temperature below that of said sodium metal, said sodium metal reacts with said alloy to produce an exothermic reaction to cause initiation by burning of said mixture, wherein said sodium metal is contained on all sides within a jacket made of said alloy.