Patents Examined by Ray V. King
  • Controlled conversion of metal oxyfluorides into superconducting oxides
    Patent number: 6172009
    Abstract: An oxide superconductor article is provided having an oxide superconductor film having a thickness of greater than 0.5 microns disposed on a substrate, said article having a transport critical current density (Jc) of greater than or equal to about 105 A/cm2 at 77 K, zero field. The oxide superconductor film is characterized by high Jc and high volume percent of c-axis epitaxial oxide grains, even with thicknesses of up to 1 micron.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: January 9, 2001
    Assignee: Massachusetts Institute of Technology
    Inventors: John A. Smith, Michael J. Cima, Neville Sonnenberg