Pyrotechnic compositions comprising nanostructured crystalline boron phosphide and oxidizer
AssigneeThe United States of America as represented by the Secretary of the Army
InventorsAnthony P. Shaw, Jason Brusnahan, Jay C. Poret, Lauren A. Morris, Christopher D. Haines, Zhaohua Luan
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Abstract
A novel pyrotechnic composition comprising nanostructured crystalline boron phosphide and oxidizer such as potassium nitrate wherein the crystalline boron phosphide is synthesized by a self-propagating high-temperature reaction. The nanostructured crystalline boron phosphide and oxidizer pyrotechnic composition unexpectedly emits smoke and green flame upon ignition.
Claims15
A mixture comprising crystalline boron phosphide wherein the specific surface area of the crystalline boron phosphide is between 0.05 m2/g and 40 m2/g and a solid oxidizer, wherein said mixture is a solid pyrotechnic composition.
A mixture comprising crystalline boron phosphide wherein the specific surface area of the crystalline boron phosphide is between 0.05 m2/g and 40 m2/g and potassium nitrate, wherein the crystalline boron phosphide is prepared by a self-propagating high-temperature synthesis reaction and wherein ignition of the composition produces smoke and flame.
Dependencies are inferred from the claim text.