For Aluminizing we have terms and definitions in 3 topics. The topics are Corrosion, Metal and Telescope.

Aluminizing (Corrosion)

Forming of an aluminum or aluminum alloy coating on a metal by hot dipping, hot spraying, or diffusion

Aluminizing (Metal)

Forming an aluminum or aluminum alloy coating on a metal by hot dipping, hot spraying, or diffusion.

Aluminizing (Telescope)

Telescope mirrors used to be made of metal, laboriously worked to the right shape. Metals tarnish, however, so that the labor -- or most of it -- had to be repeated periodically: Polishing off the tarnish changed the shape enough to matter. It was a big deal, in the nineteenth century, when new chemical processes made it possible to deposit a film of silver on glass: A tarnished mirror could be repaired simply by removing the remains of the old coating chemically, and depositing a new one. In the 1930s, the new process of aluminizing allowed deposition of a coating of aluminum on a mirror in a vacuum chamber, essentially by boiling aluminum vapor off a heated piece of that metal.
Aluminum is much more tarnish-resistant than silver, hence its advantage. Other metals and materials may similarly be deposited.

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