Patents by Inventor Leonella Nerodenko

Leonella Nerodenko has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20050202168
    Abstract: A thermal barrier coating (TBC 26) and method for forming the TBC (26) on a component (10) characterized by a stabilized microstructure that resists grain growth, sintering and pore coarsening or coalescence during high temperature excursions. The TBC (26) contains elemental carbon and/or a carbon-containing gas that increase the amount of porosity (32) initially within the TBC (26) and form additional fine closed porosity (32) within the TBC (26) during subsequent exposures to high temperatures. A first method involves incorporating elemental carbon precipitates by evaporation into the TBC microstructure. A second method is to directly incorporate an insoluble gas, such as a carbon-containing gas, into an as-deposited TBC (26) and then partially sinter the TBC (26) to entrap the gas and produce fine stable porosity within the TBC (26).
    Type: Application
    Filed: August 11, 2004
    Publication date: September 15, 2005
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Boris Movchan, Yuriy Rudoy, Leonella Nerodenko, Ramgopal Darolia, Irene Spitsberg, Anthony Thompson, David Wortman, Curtis Johnson
  • Publication number: 20050064104
    Abstract: A thermal barrier coating, or TBC, and method for forming the TBC. The TBC is formed of a thermal-insulating material that contains yttria-stabilized zirconia (YSZ) alloyed with at least a third oxide. The TBC is formed to also contain elemental carbon, and may potentially contain carbides and/or a carbon-containing gas that forms from the thermal decomposition of carbon. The TBC is characterized by lower density and thermal conductivity, high temperature stability and improved mechanical properties. To exhibit the desired effect, the third oxide is more particularly one that increases the lattice strain energy of the TBC microstructure as a result of having an ion size that is sufficiently different than a zirconium ion.
    Type: Application
    Filed: June 18, 2004
    Publication date: March 24, 2005
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ramgopal Darolia, Boris Movchan, Yuriy Rudoy, Leonella Nerodenko, Irene Spitsberg, David Wortman