Patents by Inventor Emma White

Emma White 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).

  • Method of making an apparatus for transpiration cooling of substrates such as turbine airfoils
    Patent number: 9579722
    Abstract: A method and apparatus for generating transpiration cooling using an oxidized porous HTA layer metallurgically bonded to a substrate having micro-channel architectures. The method and apparatus generates a porous HTA layer by spreading generally spherical HTA powder particles on a substrate, partially sintering under O2 vacuum until the porous HTA layer exhibits a porosity between 20% and 50% and a neck size ratio between 0.1 and 0.5, followed by a controlled oxidation generating an oxidation layer of alumina, chromia, or silica at a thickness of about 20 to about 500 nm. In particular embodiments, the oxidized porous HTA layer and the substrate comprise Ni as a majority element. In other embodiments, the oxidized porous HTA layer and the substrate further comprise Al, and in additional embodiments, the oxidized porous HTA layer and the substrate comprise ?-Ni+??-Ni3Al.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: February 28, 2017
    Assignee: U.S. Department of Energy
    Inventors: Mary Anne Alvin, Iver Anderson, Andy Heidlof, Emma White, Bruce McMordie