Explanation
In practical superconducting materials, superconducting materials play a major role in carrying transmission current. For example, in the inner tin method Nb3Sn superconducting wire rod, the superconductor generated by the reaction of Sn and Nb, that is, the reaction layer between the hole and Nb, is called the superconducting layer.
Classification
Special functional materials -> Superconducting materials -> High temperature superconducting materials