Reinforced superconducting wire and method for manufacturing the same
First Claim
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1. A reinforced superconducting wire, comprising:
- a superconducting tape portion, said superconducting tape portion being in a state of compressive residual stress; and
a reinforcement member connected to said superconducting tape portion, whereina material forming said reinforcement member includes nickel, cobalt and chromium, andin said material forming said reinforcement member,said nickel is in a range from 20 wt % or more to 42 wt % or less,said cobalt is in a range from 23 wt % or more to 44 wt % or less, andsaid chromium is in a range from 14 wt % or more to 26 wt % or less.
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Abstract
Reinforced materials for high temperature superconducting tape. More specifically reinforcement materials for significantly reducing the amount of required reinforcement and attaining much higher stress tolerances at practical conductor dimensions are described herein.
13 Citations
14 Claims
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1. A reinforced superconducting wire, comprising:
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a superconducting tape portion, said superconducting tape portion being in a state of compressive residual stress; and a reinforcement member connected to said superconducting tape portion, wherein a material forming said reinforcement member includes nickel, cobalt and chromium, and in said material forming said reinforcement member, said nickel is in a range from 20 wt % or more to 42 wt % or less, said cobalt is in a range from 23 wt % or more to 44 wt % or less, and said chromium is in a range from 14 wt % or more to 26 wt % or less. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A reinforced high temperature superconductor comprised of a) a BSCCO 2223/silver tape core in a state of compressive residual stress, b) two reinforcement strips, one on each side of the broad surfaces of the tape c) a joining material comprised primarily of an organic adhesive or solder containing in excess of 5% of any one of Sn, Pb, In, Sb or Bi between the reinforcement strips and BSCCO 2223/silver tape core, coating the outside of the assembly and between the reinforcement strips at the edges of the assembly such that the reinforcement occupies less than 35% of the total composite cross sectional area and where the critical current of the composite is not degraded by more than 5% with an applied tensile stress in excess of 400 MPa at a temperature of 300 K or lower.
Specification