Aluminium oxide is responsible for resistance of metallic aluminium to weathering. Metallic aluminium is incredibly reactive with atmospheric oxygen, and a skinny passivation layer of alumina (4 nm thickness) sorts in about a hundred picoseconds on any uncovered aluminium area.[5] This layer safeguards the metal from further oxidation. The thickness https://metallography65310.mybloglicious.com/55035390/a-review-of-aluminum-oxide