OXIDE SUPERCONDUCTING LARGE CAPACITY CONDUCTOR

摘要

PROBLEM TO BE SOLVED: To provide a Rutherford type compressing conductor that has excellent mechanical strength and can enlarge its capacity. SOLUTION: A pure silver pipe is filled with mixed powder blended in the ratio of the number of elements Bi:Sr:Ca:Cu=2:2:1:2. A single wire is manufactured by applying a diameter contracting process. Then, seven round wires that are manufactured by 61 single wires that are inserted into a silver pipe again and are subjected to the diameter contracting process are bundled, are inserted into a silver alloy pipe and are subjected to the diameter contracting process to manufacture a superconducting wire. A primary cable is manufactured by stranding six superconducting element wires around a reinforcing wire. After stranding again 10 primary cables and applying a compressing and shaping process to the stranded cable, the cable in an oxygen atmosphere a 1×6×10 secondary, stranded Rutherford type compression formed conductor is manufactured by baking in an oxygen atmosphere. Therefore, a compressively formed conductor that has excellent mechanical strength and can enlarge its capacity can be obtained.