Patent ID: 6193814
Filing Date: 2001-02-27
Classification: B22F,B32B,C06B,C06C,C23C,C23F,Y10T

Abstract:
A method of producing a pyrophoric body comprising the steps:a) applying a dispersion or slurry of aluminum, or a mixture of aluminum and at least one material selected from the group consisting of iron, titanium, zirconium, boron, chromium, phosphorus, manganese, nickel, cobalt and copper, in a liquid to at least one surface of a body of iron or steel which is coated with a layer of tin, said layer of tin having a thickness of from about 0.003 mils to 0.10 mils, to form a coated body;b) heating the coated body to an elevated temperature to diffuse the aluminum into the iron or steel and form an aluminide coated body; andc) leaching the aluminide coated body in an aqueous caustic solution to remove at least a portion of the aluminum from the aluminide coated body.