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XTornado ,

If they take too long the room temperature won’t be enough due the increase in temperatures 😅 /s

schroedingershat ,

Tc is allegedly 120C, so we,ve got a couple of years if it’s not a scam.

wanderingmagus ,

This… this is literally revolutionary if true. Has it been corroborated by other experiments? How certain are the results? How hard is it to mass produce this? This could literally be the breakthrough of the century in materials science here.

DominicHillsun OP ,

The researchers and university are trustworthy, however this information is so new that others are still learning about. What is interesting is that the process isn’t very complicated and if you have a vacuum furnace, you can potentialy replicate their results.

PupBiru , (edited )
@PupBiru@kbin.social avatar

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 OP ,

Insane capacity batteries

Lossless power transmission via wires

Better magnetically levitating trains

Much more power efficient computers, electronics

The list is huge

Ashiette ,

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 ,
@transientpunk@sh.itjust.works avatar

ELI5?

Ashiette ,

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 ,
@TonyTonyChopper@mander.xyz avatar

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

TWeaK ,

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 ,
@PupBiru@kbin.social avatar

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

PupBiru ,
@PupBiru@kbin.social avatar

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 ,

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.

DominicHillsun OP ,

It would be a real bummer if this came out to be untrue. However it’s simple enough to replicate, so we will know soon enough

psud ,

In amongst that discussion is a lot of reason to hope this will be better, several note that the researchers made a low quality sample “spongy crap” and that in other superconductors made at that quality are just as limited, only becoming useful when better quality samples are made

PupBiru ,
@PupBiru@kbin.social avatar

that’s great news! let’s hope replication and peer review is smooth!

eramseth ,

Maybe it’s me misunderstanding, but 127 is considered room temp?

DominicHillsun OP ,

127c is the maximum operating temperature. If it goes above that, it looses superconductivity.

This material below 127c (which is insanely hot for superconductors) will be superconductive.

Operating range is -273c to 127c

eramseth ,

Makes sense. Thanks for clarifying.

Screwthehole ,

deleted_by_moderator

    •
    Vupperware ,
    @Vupperware@lemmy.world avatar

    This is huge, is it not? No loss in potential energy means that I could have an infinitely floating coffee cup without the use of power, no?

    DominicHillsun OP ,

    It is absolutely huge

    It means that you can make supercapacitors which have larger energy storage density than our current batteries by who knows how many times

    TheYang ,
    @TheYang@lemmy.world avatar

    What’s the connection between conductivity and capacitance?

    It’s been a while…

    xkforce ,

    If it were real maybe. But having read the paper, I am very skeptical that it is.

    Tibert ,

    I didn’t read or watch the video yet, but if it works like the current superconductors, the magnetic fields will be repealed and cannot enter the superconductor.

    However currently is it possible to make superconductors with impurities allowing the magnetic fields to enter (through the impurities) in the superconductor. This allow quantum locking / magnetic locking.

    en.m.wikipedia.org/wiki/Flux_pinning

    However as said above, you need a magnetic field. So either a permanent magnet or by generating one with electricity use.

    Another interesting thing is that superconductors allow to store electricity for an indefinite amount of time. Like you put eletrcitiy in it and it will still be in it after 20+ years. However it is not an infinite energy. If it generates work or it is extracted from there, it will dissipate. As the energy will be used up.

    NewsAutoMod ,

    deleted_by_author

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    DominicHillsun OP ,

    It matches and it’s not an article but a research paper.

    Thekingoflorda ,
    @Thekingoflorda@lemmy.world avatar

    Itsa glitch, I’m still working on improving it. Sorry for the inconvenience.

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