Superconducting wind-and-react-coils and methods of manufacture
AssigneeAmerican Superconductor Corporation
InventorsMichael D. Manlief, Gilbert N. Riley, Jr., John Voccio, Anthony J. Rodenbush
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Abstract
A process for manufacturing superconducting magnetic coils from strain-tolerant, superconducting multi-filament composite conductors is described. The method involves winding the precursor to a multi-filament composite conductor and an insulating material or its precursor around a mandrel in order to form a coil, and then exposing the coil to high temperatures and an oxidizing environment. The insulating material or its precursor is chosen to permit exposure of the superconductor precursor filaments to the oxidizing environment, and to encase the matrix-forming material enclosing the filaments, which is reversibly weakened during processing.
Claims15
A superconducting magnetic coil comprising:
- a multi-layer coil of a multi-filament composite conductor comprising multiple superconducting filaments enclosed in a matrix-forming material, each of the filaments extending the length of the multi-filament composite conductor,
- said multi-filament composite conductor formed into said multi-layer coil being subjected to a bend strain in excess of the critical strain of said multi-filament composite conductor when in a reacted state,
- said multi-filament composite conductor having a minimum critical-current of 1.2 Amperes.
Dependencies are inferred from the claim text.