FIELD: superconductor manufacturing process. SUBSTANCE: high-ordered structure is proposed to be organized in sections near contacts whose normal-state conductivities and critical current densities are higher than those of other sections of part. This is attained by forming current-carrying part using crucible-free zone melting method with varying zone speed; zone speed at near-contact sections is higher than that at other sections. EFFECT: improved reliability of current-carrying part contacts. 2 cl, 4 dwg
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