A technology for creating a flexible high-temperature superconductor based on magnesium diboride has been developed by scientists at Kazan Federal University (KFU). This superconductor has great potential for the industrial production of high-temperature superconducting wires, allowing it to be used in various fields, as reported by the press service of the Ministry of Education and Science of the Russian Federation.
Scientists at the Institute of Physics at KFU have identified several key advantages of magnesium diboride. In particular, it allows the use of energy-efficient cryocoolers for cooling, which makes it more accessible and practical to operate. In addition, it can be integrated into hybrid power transmission line systems based on the transmission of liquefied hydrogen and high-temperature superconducting cables. This, in turn, helps to reduce the specific cost and weight compared to traditional technologies based on REBCO materials.
The created superconductor can be used in various devices, such as magnetic systems, current-limiting devices, power cables, motors, generators, and energy storage devices. In connection with the development of cryogenic technology and advances in the field of superconductor manufacturing technologies, scientists note the importance of the task of energy conservation, especially in the context of replacing a strategically valuable resource—helium—with more affordable coolants.
The manufacturing technology includes several stages: a buffer layer is applied to a flexible substrate made of nickel alloy, then a layer of superconductor using the magnetron sputtering method, as well as protective and stabilizing layers. The study and application of flexible superconducting composites based on magnesium diboride for new generation current-carrying elements were carried out thanks to a grant from the Russian Science Foundation, which emphasizes the importance of the work of scientists in this field.
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