John S Mester

US Patent:

20050137092, Jun 23, 2005

Filed:

May 21, 2004

Appl. No.:

10/850857

Inventors:

John Mester - Menlo Park CA, US

International Classification:

H01B001/00

US Classification:

505100000

Abstract:

A superconductive contact or contact structure composed mainly of superconductors and a hydroxide-catalyzed bond that establishes electrical contacts, retains superconductivity, and provides the full mechanical fastening strength between the superconductors. According to the present invention, the superconductive contact structure exhibits a single-film superconductive behavior. In some embodiments, the structure has a configuration of two metallic low critical-temperature (low-T) superconductors, such as niobium (Nb), connectorized by an essentially transparent and extremely thin hydroxide-catalyzed bond. In some embodiments, two ceramic high critical-temperature (high-T) superconductors, such as perovskite ceramics (e.g., YBaCuOor YBCO in general) are joined via a hydroxide-catalyzed bond. In some embodiments, a metallic low-Tsuperconductor and a ceramic high-Tsuperconductor is connectorized via a hydroxide-catalyzed bond.