Npl Plus Fp High Temperature (tc Greater Than 30 K) Superconductor: Material (i.e., Element, Compound, Or Composition) Devices, Systems, Apparatus, Components, Stock, Processes Of Using Same, Or Processes Of Producing Or Treating High Temperature (tc Greater Than 30 K) Superconductor Material Or Superconductor Containing Products Or Precursors Thereof Patents (Class 505/951)
  • Superconducting circuit, production method of superconducting joints, superconducting magnet, and production method of superconducting magnet
    Patent number: 8513527
    Abstract: A superconducting circuit including a superconducting joint that joints a niobium titanium superconducting wire having a structure where a filament made of niobium titanium alloy is arranged in a matrix made of copper or copper alloy and other superconducting wire, in which a volume ratio or a surface density of an ?-Ti precipitation in the niobium titanium alloy of the filament in the superconducting joint is smaller than the volume ratio or the surface density of the ?-Ti precipitation in the niobium titanium alloy of the filament in the niobium titanium superconducting wire in a portion other than the superconducting joint.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: August 20, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Motomune Kodama, Michiya Okada, Masaya Takahashi
  • Process for the production of Nb3A1 extra-fine multifilamentary superconducting wire
    Publication number: 20020037816
    Abstract: A high-performance Nb3Al extra-fine multifllamentary superconducting wire is produced simply and inexpensively through the improvement of critical Values, Tc, Hc2 and Jc, without the addition of third elements such an Go, Si and Cu
    Type: Application
    Filed: April 6, 2001
    Publication date: March 28, 2002
    Inventors: Akihiro Kikuchi, Yasuo Iijima, Kiyoshi Inoue