Patent ID: 11897825
Assignee: ARMTEC DEFENSE PRODUCTS CO.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C  D

Claim 0:
1. A method of preparing a visual and infrared signature composition (VIS-IR powder) comprising:
mixing a first metal composition and a binder composition to provide a first mixture, wherein the first metal composition comprises aluminum and tin;
mixing a first solid comprising at least a portion of the first mixture with a second metal composition to provide a second mixture, wherein the second metal composition comprises iron;
heating the second mixture to provide an intermetallic composition;
adding the intermetallic composition to a leaching solution providing a solid portion and a leached portion that contains the aluminum;
separating the solid portion from the leached portion, wherein the solid portion comprises the tin and pyrophoric iron; and
drying the solid portion to provide the VIS-IR powder.