this post was submitted on 27 Aug 2023
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Scientists have produced an oxide glass with unprecedented toughness. Under high pressures and temperatures, they succeeded in paracrystallizing an aluminosilicate glass: The resulting crystal-like structures cause the glass to withstand very high stresses and are retained under ambient conditions.

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[–] Hildegarde 18 points 2 years ago* (last edited 2 years ago) (1 children)

I'm really looking forward to a new company establishing its reputation on this incredible glass, only to quietly replace it with cheaper and worse glass years later.

[–] [email protected] 4 points 2 years ago (1 children)

let's hope that's not the case. there are reputable glassmakers already that pride themselves on the quality of their products.

[–] [email protected] 1 points 2 years ago (2 children)

I don't think the glass makers themselves are necessarily the issue - they'll supply whatever is in demand, including low quality crap if demand is high enough.

[–] Hildegarde 1 points 2 years ago

People know brand names. People don't own glass testing equipment. People will buy cheap glass for a high price if it has a brand name they associate with quality.

Supply and demand has nothing to do with it.

[–] [email protected] 1 points 2 years ago

The existence of quality makers implies there is sufficient demand for quality

[–] [email protected] 14 points 2 years ago (2 children)

ah, the transparent aluminum from Star Trek

[–] YaksDC 4 points 2 years ago

Came here looking for this, thank you. ☺

[–] [email protected] 2 points 2 years ago (1 children)
[–] [email protected] 1 points 2 years ago

¿Por qué no los dos?

[–] [email protected] 7 points 2 years ago (1 children)

Oh cool, looks like Kbin supports gif thumbnails now!

[–] [email protected] 2 points 2 years ago

It always has actually!

[–] [email protected] 7 points 2 years ago (1 children)

I'd get excited but I feel like every time I read about something like this we never see it actually used in practical application.

[–] [email protected] 7 points 2 years ago (1 children)

This announcement is: We have managed to do this for a small sample in a lab using specialised equipment, likely taking days to produce one test item.

That is a long, long way from: We have scaled this up to a automated process that produces thousands of identical sheets of glass per day that will cover tens of thousands of phones.

The scientists have proved it is possible, there are now another 100 steps for the engineers it work through to see if it can scale economically.

[–] [email protected] 2 points 2 years ago

...and with those steps are even more potential points of failure. This is why we shouldn't get too excited.

It's promising and I hope it works out, but we should temper our expectations.

[–] [email protected] 5 points 2 years ago

Sounds like it exchanges rigidity for plasticity but it doesn't have long term durability (once you damage the paracrystilline areas, they lose that property). Better than directional crystalline structures because there's not a "grain", but weaker.

[–] [email protected] 2 points 2 years ago

The researchers explain the extraordinary strengthening of the glass by the fact that forces acting on the glass from outside, which would normally lead to breakage or internal cracks, are now primarily directed against the paracrystalline structures. They dissolve areas of these structures and transform them back into an amorphous, random state.

If I'm reading this correctly, hitting the glass multiple times will make it as brittle as glass over time.

[–] [email protected] 2 points 2 years ago (1 children)

oh cool, so the glass on phone screens will become ~~tougher~~ thinner?

[–] [email protected] 3 points 2 years ago

~~tougher~~ ~~thinner~~

pricier

[–] [email protected] 1 points 2 years ago (1 children)

So we finally have chainglass?

[–] [email protected] 1 points 2 years ago (1 children)

Is this how we herald the arrival of the prador?

[–] [email protected] 1 points 2 years ago

I for one welcome our new terrible carnivorous crab overlords