
Aluminium powder is used in explosives, fireworks (pyrotechnics), rocket fuels, paints (for metallic finishes), and 3D printing, leveraging its high reactivity and energy release. It also serves as a foaming agent in concrete (AAC), corrosion-resistant coatings, welding (thermite), and in producing chemicals, catalysts, cosmetics, and electrical components.
Key Applications:
Pyrotechnics & Explosives: Produces bright flashes, loud noises, and serves as a propellant in fireworks, flares, and some explosives.
Aerospace & Fuel: A crucial component in solid rocket propellants for its high energy output.
Paints & Coatings: Creates metallic finishes (like silver) and provides corrosion resistance in paints, inks, and thermal spray coatings.
Construction: Acts as a foaming agent in aerated concrete (AAC) and adds strength/corrosion resistance in specialized concrete.
Welding: Used in thermite welding (aluminothermy) for rail tracks and other large metal parts due to its reducing properties.
Chemicals & Catalysts: Used in creating aluminium compounds, as a reducing agent in organic/inorganic synthesis, and as a catalyst.
Electronics: Added to some solar cells and EMI shielding materials for conductivity.
Additive Manufacturing (3D Printing): Used as feedstock for metal 3D printing.
Foundry: Acts as a deoxidizer and for exothermic tapping compounds in metal casting.
Cosmetics & Forensics: Used in some makeup for color and as a fingerprint powder.
Other Uses:
Resins: Mixed with epoxy/polyurethane for cold-cast metal effects.
Refractory Materials: In high-temperature applications.
Mechanical Alloying: For creating new metal alloys.
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