Thread: Composite glass breakthrough - unbreakable screens?
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Old 11-03-2021, 05:21 PM   #9
j.p.s
Grand Sorcerer
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Quote:
Originally Posted by tomsem View Post
I’m waiting for transparent aluminum.
Quote:
Originally Posted by Quoth View Post
"Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminium oxide"
https://en.wikipedia.org/wiki/Aluminium_oxynitride

Quote:
Aluminium oxynitride (marketed under the name ALON by Surmet Corporation[3]) is a transparent ceramic composed of aluminium, oxygen and nitrogen. ALON is optically transparent (# 80%) in the near-ultraviolet, visible and midwave-infrared regions of the electromagnetic spectrum. It is four times as hard as fused silica glass, 85% as hard as sapphire, and nearly 115% as hard as magnesium aluminate spinel. Since it has a cubic spinel structure, it can be fabricated to transparent windows, plates, domes, rods, tubes and other forms using conventional ceramic powder processing techniques.
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