SUPERCONDUCTING PART MANUFACTURING PROCESS Russian patent published in 1999 - IPC

FIELD: electrical engineering; superconducting magnetic systems for stationary magnetic field generation. SUBSTANCE: helical spiral based on composition of superconductor and normally conducting metal is formed, spiral turns are insulated from each other and then secured; superconductor and normally conducting metal are made in the form of layers whose width generally equals width of spiral turn metal; they are arranged one on top of other. Normally conducting layer is made first and covered with superconducting layer. The latter is given anisotropic properties relative to pinning force whose maximum is orthogonal to turn surface; spiral turns are insulated by forming oxide insulating film on them. Used as superconducting layer is niobium or composition of niobium stannite and A-15 structure; material of normally conducting layer is stainless steel as well as one or more metals chosen from group containing copper, molybdenum, tungsten, tantalum, chromium, rhenium, and niobium. EFFECT: improved dynamic resistance to magnetic flux jumps thereby improving operating stability of part; reduced hysteresis loss; reduced input of superconductor material; facilitated manufacture. 17 cl, 17 ex