alt Hacker NewsOh 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.
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