Full paper. chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://arxiv.org/pdf/2307.12008.pdf


The document titled "The First Room-Temperature Ambient-Pressure Superconductor" by Sukbae Lee, Ji-Hoon Kim, and Young-Wan Kwon from the Quantum Energy Research Centre, Inc. and the KU-KIST Graduate School of Converging Science and Technology, Korea University, describes the synthesis of a room-temperature superconductor, LK-99, which works at ambient pressure.
Here is a summary of the process: LK-99 is described as having a modified lead-apatite structure.
The superconductivity of LK-99 is not derived from external factors such as temperature and pressure, but from a minute structural distortion caused by a slight volume shrinkage (0.48%).
This shrinkage is caused by the substitution of Cu2+ ions for Pb2+ ions in the insulating network of Pb2-phosphate. This generates stress and concurrently transfers to Pb(1) of the cylindrical column, resulting in distortion of the cylindrical column interface.
This process creates superconducting quantum wells (SQWs) in the interface.
Heat capacity results indicated that this new model is suitable for explaining the superconductivity of LK-99.
The unique structure of LK-99 that allows the minute distorted structure to be maintained in the interfaces is the most important factor that LK-99 maintains and exhibits superconductivity at room temperatures and ambient pressure.
To validate the superconductivity of LK-99, various tests were carried out such as measuring the critical temperature (Tc), zero-resistivity, critical current (Ic), critical magnetic field (Hc), and observing the Meissner effect. Above summary of the process provided by ChatGPT Code Interpreter.

Members here Gotoluc & Tinman have shown what is possible if we had such a tech. Get the tools out.

There is some disussion that they are possibly observing diamagnetism I asked CI about the paper in this context.





the debate between superconductivity and diamagnetism typically revolves around several key experimental findings.


Superconductivity is a quantum mechanical phenomenon where a material can conduct electric current with zero electrical resistance. This usually occurs at very low temperatures. Key evidence for superconductivity includes the observation of zero electrical resistance and the expulsion of magnetic fields from the material (a phenomenon known as the Meissner effect).


Diamagnetism, on the other hand, is a type of magnetism where a material becomes magnetized in opposition to an applied magnetic field, and thus, the material is repelled by the magnetic field. All materials display some diamagnetism, but in superconductors, the diamagnetic response is strong enough to completely cancel out external magnetic fields, leading to the Meissner effect.


In the paper, the authors claim to observe several key indicators of superconductivity in LK-99:


Zero electrical resistance
A critical temperature (Tc) below which superconductivity occurs
A critical current (Ic) above which superconductivity is destroyed
A critical magnetic field (Hc) above which superconductivity is destroyed
The Meissner effect
Critics who suggest that the observed phenomena could be explained by diamagnetism might argue that the observed zero resistance and Meissner effect are not definitive proof of superconductivity and could be caused by other phenomena.


To determine whether the material is truly superconducting, more specific tests could be performed. For example, a type of experiment known as muon spin rotation (µSR) could be used to detect the spontaneous magnetic fields within a superconductor that are indicative of the Cooper pairs of electrons that are a hallmark of superconductivity.

SUPER GREAT NEWS.

What would such a material be used for ideally?
How hard might it be pushed (current) and still maintain the superconductivity, providing ambient temp is kept in check?

Assuming a wire could be constructed, would an electric motor wount with it end up near 100% efficient rathe than ~90-95% efficient, and by lack of heat rejection also operate more comfortably and longer at high load, effectively increasing the load rating? If little heat is rejected, I assume cooling a sytem would be a "breeze", no pun intended?

The computer chip industry will love it if they can work with this material, I'm sure.

How might the OU world benefit? Most electrical systems attempted are very efficient anyway, any OU loop doesn't really rely on superconductors unless the gain was very minute to begin with?

here is video  of EEVblog Dave the administrator
https://youtu.be/QHPFphlzwdQ?t=483

here is original Korean  video:
https://www.youtube.com/watch?v=EtVjGWpbE7k
Original video doesn't contain any statements or claims.
It was Dave who made claims to gain popularity as some sort of  science oriented brain.
Video only shows copper plate that after it was covered with  superconductive compound behaves exactly as the copper plate would behave if it was not.
The proof of concept in superconductivity is to be analyzed yet (right or wrong)

Dave is an engineer not a  .. a trained in physics  scientist - an amateur in science -scientist I would say.
He has ego problem  trying to show himself not only as a  guy with soldering gun now.
here was his attack on  FE community calling it with "words.."
https://youtu.be/l6uPHxQVEgQ
Wesley 

Are you using this forum as your notebook to scribble shorthand in?
Do people actually know or appreciate what you're writing or alluding to here?

People ?
This forum is not for ' people',but for FE-interestants !They are introduced in hyper/-physics !
Gibbs-/Noether-/Nernst-theorems,FE = unbonded energy related !
They observe the work from Universities and Estates R&D institutes !

About LK-99 ?
https://overunity.com/17252/the-rant-room/msg580763/#new  #662,   date 27.07.2023

But clearly also free idea and claim lancer ,like :

https://www.google.com/url?q=https://www.ijera.com/papers/Vol4_issue7/Version%25206/F047063748.pdf&sa=U&ved=2ahUKEwj-lfq8_72AAxUZSKQEHcnGA_kQFnoECAQQAg&usg=AOvVaw350VoiAjopehGDoY1-ip5f
A relatively longer description than my usual telegram/telex-writing style !
wmbr
OCWL
p.s. : an inventor,also ' playing' with superconductive coils ,
https://worldwide.espacenet.com/searchResults?submitted=true&locale=en_EP&DB=EPODOC&ST=advanced&TI=&AB=&PN=&AP=&PR=&PD=&PA=Adolf+zielinski&IN=&CPC=&IC=

Member SmOkey-2 passed this along today
https://news.mit.edu/2023/mit-engineers-create-supercapacitor-ancient-materials-0731


Much appreciated
Chet

Okay,10 KWh electrostatic energy storage in 45 cbm size !
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6409971/
+- 60 Wh/lt. = 60 KWh/cbm = 2700 KWh/45 cbm !

More per litre ?
https://newatlas.com/energy/supercapacitor-density-breakthrough/

Abundant materials ? Economic size ?

wmbr
OCWL