Aluminium powder

This was originally produced by mechanical means using a stamp mill to create flakes. Subsequently, a process of spraying molten aluminium to create a powder of droplets was 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 pigment powder

Aluminium powder is powdered aluminium.

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

Depending on the usage, the powder is either coated or uncoated.

gollark: Also, in-person teaching does also seemingly generally work somewhat better, and not being able to do much in-person stuff also means you cannot really, say, ask professors questions directly, use... physical objects and stuff there... or socialize with people/do many activities, which is apparently a university thing™.
gollark: ...
gollark: Although ours is too, as it is confusingly funded via a weird combination of semi-subsidized loans and the government.
gollark: * paid-for-by-other-people
gollark: Anyway, the convention here is seemingly to live near university while going there and shove some of the cost onto student loans you're forced to pay back for 30 years, so commuting isn't a huge issue.

See also

References
  1. Joseph R. Davies (1993), "Powder Metallurgy Processing", Aluminum and Aluminum Alloys, ASM International, p. 275, ISBN 9780871704962
  2. Friedman, Raymond (1998). Principles of Fire Protection Chemistry and Physics. Jones & Bartlett Learning. ISBN 9780877654407.
  3. Champod, Christophe; Lennard, Chris J.; Margot, Pierre; Stoilovic, Milutin (2004-04-27). Fingerprints and Other Ridge Skin Impressions. CRC Press. ISBN 9780203485040.
  4. Space Shuttle Basics –Solid Rocket Boosters, NASA
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