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submitted 1 year ago* (last edited 1 year ago) by DominicHillsun@lemmy.world to c/news@lemmy.world
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[-] PupBiru@kbin.social 15 points 1 year ago* (last edited 1 year ago)

anyone with a better understanding able to articulate potential trade-offs/complications to using this in practical applications?

*edited:
more discussion: https://news.ycombinator.com/item?id=36864624

the critical field and critical current seem very low … This means you can't actually push big current through this thing (yet). You can't make a powerful magnet, and you can't make viable power lines

The method to produce this material as described in the related paper [1] is fairly simple and could be done at home with a $200 home metal melting furnace from amazon and the precursors (which also seem to be fairly standard easy to obtain metals)

Read this comment thread from SC researchers: <reddit link removed>
Lots of problems with the paper, they claim. It is not up to the standards of current SC research. One of them says Dias's work shows more merit than this.

[-] DominicHillsun@lemmy.world 12 points 1 year ago

Insane capacity batteries

Lossless power transmission via wires

Better magnetically levitating trains

Much more power efficient computers, electronics

The list is huge

[-] Ashiette@lemmy.one 15 points 1 year ago

The only drawback is that LK-99 is polycristalline... Levitating trains and computers, electronics, are a stretch as long as the material is not monocristalline.

It is huge nethertheless.

[-] transientpunk@sh.itjust.works 5 points 1 year ago
[-] Ashiette@lemmy.one 15 points 1 year ago

ELI5 :

Think of the material as a powder. You can compress the powder and make current flows though it. It's good for wiring, etc.

But to have an application in electronics, it would have to be like a metal, which it can't be since it's a powder

[-] TonyTonyChopper@mander.xyz 3 points 1 year ago

Metals are usually polycrystalline. Not sure what you're trying to say.

[-] PupBiru@kbin.social 5 points 1 year ago

no i know many of the applications, its huge if true! i understand that, but almost everything like this comes with trade-offs, and i was wondering if there are any here that would make it non-viable for some/all applications

[-] schroedingershat@lemmy.world 5 points 1 year ago

The claimed saturation current is very low. If this is inherent and not just a first-try thing it will be less-good than permanent magnets for doing many magnetic-field things and less-good than Aluminum for some current-carrying things.

It's a perovskite, in semiconductor applications these have stability and durability problems.

It might also be a scam. This would make it useless.

[-] TWeaK@lemm.ee 4 points 1 year ago

Power cables are currently (heh) designed to operate below 90degC, because after this you get thermal runaway and the conductor melts. That's already within the operating range of this.

[-] PupBiru@kbin.social 3 points 1 year ago

from what i read, it doesn’t seem like you’re able to push much current through it, which makes power cables an unlikely application in its current (heh) form

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this post was submitted on 26 Jul 2023
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