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Recently, the Ma Yanwei research group of the Institute of Electrical Engineering of the Chinese Academy of Sciences successfully developed the world's first 10-meter high-performance 122 iron-based superconducting wire, achieving a new breakthrough
in the field of iron-based superconducting wire strip.
The results were published in Physics Series C
.
Iron-based superconductors are the second high-temperature superconducting system after the copper oxide superconductor discovered in 1986, and have unique application advantages
in the field of high field.
In practical applications, superconductors need to be prepared into wire strips for current transmission or magnet winding, so the development of superconducting wires with high current-carrying performance and their large-scale preparation technology is the key to
realizing the strong electrical application of iron-based superconducting materials.
Previously, Ma Yanwei's research group developed the first iron-based superconducting wire internationally
.
The transmission current performance of the 122 iron-based superconducting strip prepared in 2014 reached 100,000 amperes per square centimeter at 4.
2K/14T, indicating that China has taken the lead in entering the threshold of practical application
.
Recently, the research group has also made important progress in the low-cost preparation of iron-based superconducting wire strip, and has developed a high-performance type 122 superconducting strip using pure copper as the coating material
.
On the basis of obtaining high-quality short samples, the preparation of high-performance long-term is the only way for new iron-based superconducting materials to move towards large-scale application, and it is also one of
its major technical difficulties.
Through the systematic research of key technologies such as phase component and microstructure control involved in the preparation process, uniform processing of interface complexes, etc.
, the research group finally successfully developed a high-performance 122 iron-based superconducting long line with a length of 11 meters, and its transmission current performance exceeded 18400 amperes per square centimeter under a magnetic field of 10 Tesla, thus laying a solid foundation
for subsequent industrial production.
Recently, the Ma Yanwei research group of the Institute of Electrical Engineering of the Chinese Academy of Sciences successfully developed the world's first 10-meter high-performance 122 iron-based superconducting wire, achieving a new breakthrough
in the field of iron-based superconducting wire strip.
The results were published in Physics Series C
.
Iron-based superconductors are the second high-temperature superconducting system after the copper oxide superconductor discovered in 1986, and have unique application advantages
in the field of high field.
In practical applications, superconductors need to be prepared into wire strips for current transmission or magnet winding, so the development of superconducting wires with high current-carrying performance and their large-scale preparation technology is the key to
realizing the strong electrical application of iron-based superconducting materials.
Previously, Ma Yanwei's research group developed the first iron-based superconducting wire internationally
.
The transmission current performance of the 122 iron-based superconducting strip prepared in 2014 reached 100,000 amperes per square centimeter at 4.
2K/14T, indicating that China has taken the lead in entering the threshold of practical application
.
Recently, the research group has also made important progress in the low-cost preparation of iron-based superconducting wire strip, and has developed a high-performance type 122 superconducting strip using pure copper as the coating material
.
On the basis of obtaining high-quality short samples, the preparation of high-performance long-term is the only way for new iron-based superconducting materials to move towards large-scale application, and it is also one of
its major technical difficulties.
Through the systematic research of key technologies such as phase component and microstructure control involved in the preparation process, uniform processing of interface complexes, etc.
, the research group finally successfully developed a high-performance 122 iron-based superconducting long line with a length of 11 meters, and its transmission current performance exceeded 18400 amperes per square centimeter under a magnetic field of 10 Tesla, thus laying a solid foundation
for subsequent industrial production.
