Aluminium powder
Aluminium powder is powdered aluminium.
Originally produced by mechanical means using a stamp mill to create flakes, a process of spraying molten aluminium to create a powder of droplets was subsequently developed by E. J. Hall in the 1920s. The resulting powder might then be processed further in a ball mill to flatten it into flakes for use as a coating or pigment.[1]
Aluminium powder, if breathed in, is not particularly harmful and will only cause minor irritation. The melting point of aluminium powder is 660 °C.[2]
Usage
- Autoclaved aerated concrete[3]
- Cosmetic colourant
- Fingerprint powder[4]
- Metallic paint
- Pyrotechnics (including the M-80 firecracker)
- Refractory materials
- Rocket and missile fuel such as the solid rocket boosters of the Space Shuttle[5]
- Thermite[6]
Depending on the usage, the powder is either coated or uncoated.
See also
References
- ^ Joseph R. Davies (1993), "Powder Metallurgy Processing", Aluminum and Aluminum Alloys, ASM International, p. 275, ISBN 9780871704962
- ^ Friedman, Raymond (1998). Principles of Fire Protection Chemistry and Physics. Jones & Bartlett Learning. ISBN 9780877654407.
- ^ "Autoclaved Aerated Concrete". www.cement.org. Retrieved 2018-11-28.
- ^ Champod, Christophe; Lennard, Chris J.; Margot, Pierre; Stoilovic, Milutin (2004-04-27). Fingerprints and Other Ridge Skin Impressions. CRC Press. ISBN 9780203485040.
- ^ Space Shuttle Basics –Solid Rocket Boosters, NASA, archived from the original on 2000-10-02
- ^ Kosanke, K; Kosanke, B. J; Von Maltitz, I; Sturman, B; Shimizu, T; Wilson, M. A; Kubota, N; Jennings-White, C; Chapman, D (December 2004). Pyrotechnic Chemistry — Google Books. ISBN 978-1-889526-15-7. Retrieved 15 September 2009.
External links
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