|
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.
I then asked CI about the manufacturing process.
The document does mention the synthesis of LK-99. Specifically, Ji-Hoon Kim is credited with the main responsibility for the synthesis of LK-99 and is said to have developed the synthetic method of LK-99 through the study of reaction mechanisms and X-ray diffraction (XRD) data analysis. However, the document does not go into detail about the specifics of the manufacturing process.
It's worth noting that, in scientific research, initial lab-scale synthesis of a new material is often a complex process that may not be directly scalable to industrial production. Transitioning from lab-scale synthesis to large-scale industrial production can involve significant technical challenges, and may require new processes and equipment, all of which can take considerable time and investment.
In addition, while the primary elements used, Pb and Cu, are not rare or exotic, their specific arrangement and the process to achieve the LK-99 structure could still pose challenges. The document mentions that the superconductivity of LK-99 originates from a minute structural distortion caused by a slight volume shrinkage, which is achieved through the substitution of Cu2+ ions for Pb2+ ions in the insulating network of Pb2-phosphate. This implies a level of precision that may be difficult to achieve consistently at an industrial scale.
To fully understand the potential challenges and feasibility of adopting this technology in industry, more detailed information about the manufacturing process and material properties of LK-99 would be needed.
|
Author
Topic: Room Temperature Superconductor Pb & Cu (Read 2092 times)
