Superconductor and process for manufacture

Details Superconductor and process for manufacture Superconductor and process for manufacture

1990-12-17

1992-12-29

Zimmerman, John

Metal treatment

Process of modifying or maintaining internal physical...

Superconductive metal or alloy

29599, 505918, 505921, C22C 118, H01L 3912, H01L 3924, H01B 1202

Patent

active

051748304

ABSTRACT:
A superconductor which is superconducting of a predetermined high field and low temperature is formed by combining a plurality of metal bodies to form a composite structure. The metal bodies are selected from transition metals such as niobium, tantalum, zirconium, hafnium and vanadium, and alloys of such metals, alternate bodies being formed of ductile alloys of the metals which are not superconducting at the predetermined high field. The alternate bodies of transition metals are reacted to form a ductile superconducting ternary alloy zone at the interfaces of these bodies. The extent of the reaction is limited so as to maintain areas of transition metal and transition metal alloys which are not superconducting at the high field. The composite structure is reduced sufficiently that each non superconducting zone is less than 1000A.degree. thick and serves as an artificial pinning site for each adjacent superconducting zone.

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patent: 4959279 (1990-09-01), Tanaka et al.
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