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by
dboreham
19 hours ago
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comments
by
EA-3167
14 hours ago
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Oh we have that too, it's used as high end window armor in some armored vehicles, it's called AlON (Aluminum OxyNitride).
It's amazing stuff.
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by
danbruc
11 hours ago
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parent
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Also [synthetic] sapphire [1] is just aluminium oxide.
[1]
https://en.wikipedia.org/wiki/Sapphire
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