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China achieves second-generation high-temperature superconducting (YBCO) strips commercial production Hay:H07SHCD

Under certain low temperature conditions, superconducting materials that exhibit resistance equal to zero and repulsive magnetic force are usually divided into liquid nitrogen temperature (77k), and materials are divided into low temperature and high temperature. High-temperature superconducting materials are used in the temperature zone of liquid nitrogen, and low-temperature superconducting materials are used in the temperature zone of liquid helium. The cost of liquid nitrogen is one percent of that of liquid helium. Therefore, high-temperature superconducting materials are more valuable for large-scale applications.


SHCD Superconducting Material Technology Corporation successfully realized the commercial production of "second-generation high-temperature superconducting (YBCO) tape".


The second generation of high temperature superconducting (YBCO) strip.jpg

  

The second-generation high-temperature superconducting (YBCO) strips are prepared using Hastelloy or stainless steel base strips based on physical coating methods. The length of a single strip can be 100 meters, 300 meters, 500 meters and 1000 meters. The third-party test results show that its performance under magnetic field is 25% higher than the current international best products. The strip adopts strengthening methods such as electroplating or continuous packaging, the critical current is 200-300A/(cm width), the critical current retention rate under 2T vertical field is 15%, and the current uniformity along the length of the strip is 5%.


The high-temperature superconducting tape can be used in electricity (superconducting cables, superconducting current limiters), energy (superconducting motors, etc.), medical (magnetic resonance imaging, etc.), transportation (superconducting magnetic levitation), military (superconducting magnetic Catapult) and other fields, the development prospects are considerable.

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