Patents Assigned to Sheffield Hallam University
  • Protective Ti-Al-Cr-based nitrided coatings
    Patent number: 7160635
    Abstract: This invention relates to coatings for the protection of substrates operating at moderately elevated temperatures, and, more particularly, for the protection of titanium-alloy aircraft and stationary gas turbine components as well as engine components for automotive applications, articles having such coatings and a method for their production.
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: January 9, 2007
    Assignee: Sheffield Hallam University
    Inventors: Christoph Leyens, Papken Ehiasar Hovsepian, Wolf-Dieter Munz
  • Combined coating process comprising magnetic field-assisted, high power, pulsed cathode sputtering and an unbalanced magnetron
    Patent number: 7081186
    Abstract: A PVD process for coating substrates, wherein the substrate is pre-treated in the vapor of a pulsed, magnetic field-assisted cathode sputtering operation, and during pre-treatment a magnetic field arrangement of the magnetron cathode type, with a strength of the horizontal component in front of the target of 100 to 1500 Gauss, is used for magnetic field-assistance, and after pre-treatment further coating is effected by means of cathode sputtering and the power density of the pulsed discharge during pre-treatment is greater than 1000 W.cm?2.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: July 25, 2006
    Assignee: Sheffield Hallam University
    Inventors: Arutiun Papken Ehiasarian, Papken Ehiasar Hovsepian, Wolf-Dieter Munz
  • Glass composite
    Patent number: 6887922
    Abstract: The invention describes a solid glass composite comprising glass granules and a binder resin which may be used in a wide range of applications, for example, flooring, furniture, lighting, work surfaces and architectural features.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: May 3, 2005
    Assignee: Sheffield Hallam University
    Inventor: James Roddis