Answer:
Anodizing is an electrochemical technique that turns a metal surface into an anodic oxide finish that is beautiful, long-lasting, and corrosion-resistant. Although aluminium is good for anodizing, other nonferrous metals like magnesium and titanium can also be anodized.
Process:
Anodizing is done by immersing aluminium in an acid electrolyte bath and then sending an electric current across it. The inside of the anodizing tank has a cathode, and the aluminium functions as an anode, allowing oxygen ions from the electrolyte to join with the aluminium atoms on the anodised part’s surface. As a result, anodizing is a process of carefully managed oxidation that enhances a naturally occurring phenomena.
Uses:
- Satellites are shielded from the harsh conditions of space.
- Environmentally friendly, with minimal, if any, negative consequences on land, air, or water.
- Exteriors, roofs, curtain walls, ceilings, floors, escalators, lobbies, and staircases of skyscrapers and commercial buildings around the world are appealing, low-maintenance, and highly durable.