this post was submitted on 20 Jan 2025
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[–] AeonFelis@lemmy.world 2 points 5 hours ago (2 children)

Why don't they just use diamond, the hardest metal?

[–] Haquer 6 points 3 hours ago (1 children)

I thought Dragonforce was the hardest metal known to man?

[–] minyaen@lemmy.ml 1 points 1 hour ago
[–] chaogomu@lemmy.world 5 points 3 hours ago (1 children)

Hardness isn't the best thing to have in armor. In fact, extreme hardness means extreme brittleness.

Tensile strength is more desirable in armor. That's the sort of strength that a string or rope, or Kevlar will have.

Those can stretch a bit before breaking.

Kevlar will stretch a bit when catching a bullet, this does a few things, but importantly it slows the bullet before stopping it.

So this new material will likely show extreme tensile strength rather than hardness.

[–] CoffeeJunkie@lemmy.cafe 2 points 1 hour ago

Correct. 🙂 Reminds me of when I wanted new tires & I was complaining about how some tires were rated for a criminally short life. I wondered which ones lasted the longest.

The mechanic then remarked that sure, they can make tires that last a hell of a long time & never puncture. But the ride would be so terrible because the tires would be tough, stiff, would work your suspension harder, and it would cost a fortune to boot. It's not worth it. There are multiple material, usage considerations when making a product. Really makes you appreciate the experts in their various fields.