Amorphous Alloy Patents (Class 505/804)
  • Dynamic high pressure process for fabricating superconducting and permanent magnetic materials
    Patent number: 4907731
    Abstract: Shock wave formation of thin layers of materials with improved superconducting and permanent magnetic properties and improved microstructures.The material fabrication system includes a sandwiched structure including a powder material placed between two solid members to enable explosive shock consolidation. The two solid members are precooled to about 80.degree.-100.degree. K. to reduce the residual temperatures attained as a result of the shock wave treatment, and thereby increase the quench rate of the consolidated powder.
    Type: Grant
    Filed: October 14, 1987
    Date of Patent: March 13, 1990
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: William J. Nellis, Theodore H. Geballe, M. Brian Maple