Comment by EA-3167
12 hours ago
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.
12 hours ago
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.
Also [synthetic] sapphire [1] is just aluminium oxide.
[1] https://en.wikipedia.org/wiki/Sapphire