Pyrophoric materials and methods for making the same
AssigneeAlloy Surfaces Company, Inc.
InventorAlfonso L. Baldi
Life of this patent
Estimating the term…
Abstract
A pyrophoric coating formed by leaching aluminum from an aluminide coated web in which the aluminide coating was formed on or into the web by an exothermic and diffusion reaction of a powder containing aluminum and chromium with or without a transition metal selected from the group consisting of iron, nickel or cobalt and in which the weight ratio of chromium to aluminum is at least 1:50 but no more than about 1:4.
Claims9
A pyrophoric coating formed by leaching aluminum from an aluminide coated metal foil having a thickness of 0.0005 inch to 0.005 inch in which the aluminide coating was formed on or into the foil by an exothermic and diffusion reaction of a powder containing aluminum and chromium with or without a transition metal selected from the group consisting of iron, nickel or cobalt and in which the weight ratio of chromium to aluminum is at east 1:50 but no more than about 1:4.
A decoy for heat-seeking devices which comprises a metal foil having a thickness of 0.0005 inch to 0.005 inch which is coated with a pyrophoric coating, said coated metal foil being formed by leaching aluminum from an aluminide coated foil having a thickness of 0.0005 inch to 0.005 inch in which the aluminide coating was formed on or into the foil by an exothermic and diffusion reaction of a powder containing aluminum and chromium with or without a transition metal selected from the group consisting of iron, nickel or cobalt and in which the weight ratio of chromium to aluminum is at least 1:50 but no more than about 1:4.
A decoy for heat-seeking devices which comprises a metal foil having a thickness of 0.0005 inch to 0.005 inch which is coated with a pyrophoric coating, said coated metal foil begin formed by leaching aluminum from an aluminide coated metal foil having a thickness of 0.0005 inch to 0.005 inch in which the aluminide coating was formed on or into the foil by an exothermic and diffusion reaction of a powder containing aluminum, chromium and iron, and in which the weight ratio of chromium to aluminum is at least 1:50 but no more than about 1:4.
Dependencies are inferred from the claim text.