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A reactive munition uses a housing made from a housing in a state that is three-dimensionally rigid. The housing can be made of metal, such as aluminum. A reactive filler, such as powdered polytetrafluoroethylene (PTFE), fills the one or more cavities in the aluminum housing. A jacket encases the ho

A reactive munition uses a housing made from a housing in a state that is three-dimensionally rigid. The housing can be made of metal, such as aluminum. A reactive filler, such as powdered polytetrafluoroethylene (PTFE), fills the one or more cavities in the aluminum housing. A jacket encases the housing filled with the reactive filler.

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What is claimed as new and desired to be secured by Letters Patent of the United States is: 1. A reactive sub-munition fragment in a warhead, said sub-munition fragment comprising: a housing defining at least one cavity therein, said housing being three-dimensionally rigid; reactive filler filling

What is claimed as new and desired to be secured by Letters Patent of the United States is: 1. A reactive sub-munition fragment in a warhead, said sub-munition fragment comprising: a housing defining at least one cavity therein, said housing being three-dimensionally rigid; reactive filler filling said at least one cavity, said reactive filler being non-metal having solid or powder form; and a protective jacket completely encasing said housing so-filled with said reactive filler. 2. The reactive fragment as recited in claim 1, wherein said housing is made from at least one of aluminum, zirconium, hafnium, tantalum, titanium and magnesium. 3. The reactive fragment as recited in claim 1, wherein said housing is made from metal having a state selected from the group consisting of a solid, a rigid foam and a honeycomb. 4. The reactive fragment as recited in claim 1, wherein said at least one cavity comprises a single contiguous cavity. 5. The reactive fragment as recited in claim 1, wherein said at least one cavity comprises a plurality of cavities. 6. The reactive fragment as recited in claim 1, wherein said at least one cavity extends through said housing. 7. The reactive fragment as recited in claim 1, wherein said reactive filler is selected from the group consisting of fluorinated polymers, copolymers, terpolymers, thermoplastics and epoxies, wherein said epoxies are selected from the group consisting of polytetrafluorethylene (PTFE), vinylidene fluoride, polychlorotrifluoroethylene, and other fluorocarbon materials fabricated from a fluorocarbon monomer, wherein said fluorocarbon monomer is selected from the group consisting of hexafluoropropylene, perfluorinated vinyl ether, and chlorotrifluoroethylene. 8. The reactive fragment as recited in claim 1, wherein said reactive filler is a powdered PTFE that comprises particles having sizes in the range of approximately 2-600 microns. 9. The fragment as recited in claim 1, wherein said protective jacket comprises a metal selected from the group consisting of steel, tungsten, hafnium, aluminum, titanium, magnesium, zirconium, tantalum and depleted uranium. 10. The reactive fragment as recited in claim 1, wherein said protective jacket has at least one cross-section that forms one of a square and a hexagon. 11. The reactive fragment as recited in claim 1, wherein said protective jacket has an outer shape selected from the group consisting of a shaped fragment and a bullet. 12. A reactive sub-munition fragment in a warhead, said sub-munition fragment comprising: an aluminum housing defining at least one cavity therein; powdered polytetrafluoroethylene (PTFE) filling said at least one cavity; and a protective jacket completely encasing said housing so-filled with said powdered PTFE. 13. The reactive fragment as recited in claim 12, wherein said PTFE filling has a density that is in the range of approximately 1.03-2.15 grams per cubic centimeter. 14. The reactive fragment as recited in claim 12, wherein said at least one cavity comprises a single contiguous cavity. 15. The reactive fragment as recited in claim 12, wherein said at least one cavity comprises a plurality of cavities. 16. The reactive fragment as recited in claim 12, wherein said at least one cavity extends through said housing. 17. The reactive fragment as recited in claim 12, wherein said powdered PTFE comprises particles having sizes in the range of approximately 2-to-600 microns. 18. The reactive fragment as recited in claim 12, wherein said protective jacket comprises a metal selected from the group consisting of steel, tungsten, hafnium, aluminum, titanium, magnesium, zirconium, tantalum and depleted uranium. 19. The reactive fragment as recited in claim 12, wherein said protective jacket has at least one cross-section that forms one of a square and a hexagon. 20. The reactive fragment as recited in claim 12, wherein said protective jacket has an outer shape selected from the group consisting of a shaped fragment and a bullet.