System and method to manage high stresses in Bi-2212 wire wound compact superconducting magnets
AssigneeThe Florida State University Research Foundation, Inc.
InventorsErnesto S. Bosque, Youngjae Kim, Ulf P. Trociewitz, Charles L. English, David C. Larbalestier
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Abstract
A coil for a magnet includes a superconductor comprising a Bi2Sr2CaCu2O8+δ (Bi-2212) high temperature superconductor (HTS) filament. The HTS filament can be encased in a protective conducting sheath. The superconductor is wound to form a coil. A reinforcement winding is wound with the superconductor. The reinforcement winding can be a wire, a tape, a band, and an outer layer encasing the superconductor filament. A method of making a coil for a magnet, a composite superconductor for a magnet, and a magnet are also disclosed.
Claims15
A coil for a magnet, comprising:
- a superconductor comprising Bi2Sr2Ca1Cu2O8+δ (Bi-2212) high temperature superconductor (HTS) filaments;
- the superconductor being wound to form a coil having a plurality of superconductor winding layers;
- and,
- at least one reinforcement band winding being wound selectively between superconductor winding layers;
- wherein the reinforcement band is made of a material that has a modulus of elasticity ≥100 GPa, a tensile strength above 0.5 GPa, is chemically inert with respect to the Bi-2212, and retains these properties after a heat treatment to 890° C., wherein the reinforcement band material comprises at least one selected from the group consisting of Al2O3and Inconel X750.
A superconducting magnet comprising coils, the coils comprising a superconductor comprising a high temperature superconducting (HTS) filaments, the superconductor being wound in winding layers to form a coil, and a reinforcement band, the reinforcement band being wound selectively between superconductor winding layers, wherein the high temperature superconductor filament comprises Bi2Sr2Ca1Cu2O8+δ (Bi-2212), wherein the reinforcement band is made of a reinforcement material that has a modulus of elasticity ≥100 GPa, a tensile strength above 0.5 GPa, is chemically inert with respect to the Bi-2212, and retains these properties after a heat treatment to 890° C., wherein the reinforcement band material comprises at least one selected from the group consisting of Al2O3and Inconel X750.
Dependencies are inferred from the claim text.