RE: Science Challenge # 2 - What is Aluminium Oxide?

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stuffy (50)in #steemstem • 7 years ago

but is it protective? =)

7 years ago in #steemstem by stuffy (50)

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rayne122 (54) 7 years ago

What do you think layers do ?

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stuffy (50) 7 years ago

well, first of all, they ruin the material itself as they make it thinner, right?

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rayne122 (54) 7 years ago

Yup.. But afterwards, it turn into layer.

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stuffy (50) 7 years ago

and does it really protective? Protective from what? Oxygen only?

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rayne122 (54) 7 years ago

Air, Scratches ! :D

stuffy (50) 7 years ago

1.only from oxygen in the air

It is kind of a layer that if damaged mechanically, repairs itself later.

so, it actually re-appears thanks to scratches
=))

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rayne122 (54) 7 years ago

Yeah. Lol.. Then again, they ruin more of the materials :D

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