I just saw that! It says, "According to the apparent thermodynamics of the reaction, an aluminum airplane could dissolve in a rainstorm ...[but it doesn't] due to the formation of a thin, adherent layer of aluminum oxide." So... sometimes oxidation is what protects it from corrosion, sometimes oxidation is the corrosion? I'm a little confused.
'Safe'
Natter 57 Varieties
Off-topic discussion. Wanna talk about corsets, duct tape, or physics? This is the place. Detailed discussion of any current-season TV must be whitefonted.
For anyone who missed last night's Daily Show, Samantha Bee has a statement to make, with her husband at her side.
I didn't realize that she and Jason Jones were married until last night. I thought the pearls were just the right touch for him.
I love Gossip Girl too, Sophia, but I have to avoid the talk about it places that aren't my friends list.
We should start talking about here! I think smonster and a few others watch it too.
I really hope I'm never involved in a stupid, embarrassing scandal. I'd have to stop watching the Daily Show.
How's this for a theory - if the oxide has a strong enough bond, oxygen won't migrate from the already formed oxide to the element to continue corroding, but if it's weaker it will?
Oh, AND, apparently bronze is actually stronger (and superior in many other ways) than (to) wrought iron.
Why did we bother having an Iron Age, then?
So... sometimes oxidation is what protects it from corrosion, sometimes oxidation is the corrosion? I'm a little confused.
Well, with aluminum and stainless steel, the thin oxidized layer blocks any further oxidization. But with, say, iron or non-stainless steel, more oxidization can always occur under the outside layer of oxidized metal.
Looks like it was cheaper to make. Also, steel is better than bronze, but it was hard to produce. Some people seem to think maybe the tin trade got more difficult? Interesting -- looks like copper and tin rarely occur near each other, so you'd have to trade with somebody before you could make bronze!
Heh. Cool.
Well, with aluminum and stainless steel, the thin oxidized layer blocks any further oxidization.
And, apparently, with bronze as well!
God, could we be any metallier?
Tin is hard to come by. If you're cut off from your source of tin to make bronze, you're screwed. Iron, on the other hand, is easy to find. While it's not as good as bronze, it is often good enough.