Patents by Inventor Gerard M. Ludtka

Gerard M. Ludtka 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: 20140020797
    Abstract: The method provides heat-resistant chromia- or alumina-forming Fe-, Fe(Ni), Ni(Fe), or Ni-based alloys having improved creep resistance. A precursor is provided containing preselected constituents of a chromia- or alumina-forming Fe-, Fe(Ni), Ni(Fe), or Ni-based alloy, at least one of the constituents for forming a nanoscale precipitate MaXb where M is Cr, Nb, Ti, V, Zr, or Hf, individually and in combination, and X is C, N, O, B, individually and in combination, a=1 to 23 and b=1 to 6. The precursor is annealed at a temperature of 1000-1500° C. for 1-48 h in the presence of a magnetic field of at least 5 Tesla to enhance supersaturation of the MaXb constituents in the annealed precursor. This forms nanoscale MaXb precipitates for improved creep resistance when the alloy is used at service temperatures of 500-1000° C. Alloys having improved creep resistance are also disclosed.
    Type: Application
    Filed: July 20, 2012
    Publication date: January 23, 2014
    Applicant: UT-BATTELLE, LLC
    Inventors: Michael P. BRADY, Gail M. LUDTKA, Gerard M. LUDTKA, Govindarajan MURALIDHARAN, Don M. NICHOLSON, Orlando RIOS, Yukinori YAMAMOTO
  • Patent number: 8522562
    Abstract: An apparatus for magnetically processing a specimen that couples high field strength magnetic fields with the magnetocaloric effect includes a high field strength magnet capable of generating a magnetic field of at least 1 Tesla and a magnetocaloric insert disposed within a bore of the high field strength magnet. A method for magnetically processing a specimen includes positioning a specimen adjacent to a magnetocaloric insert within a bore of a magnet and applying a high field strength magnetic field of at least 1 Tesla to the specimen and to the magnetocaloric insert. The temperature of the specimen changes during the application of the high field strength magnetic field due to the magnetocaloric effect.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: September 3, 2013
    Assignee: UT-Battelle, LLC
    Inventors: Gerard M. Ludtka, Gail M. Ludtka, John B. Wilgen, Roger A. Kisner, Roger A. Jaramillo
  • Publication number: 20130146469
    Abstract: Some embodiments of the present invention provide solid oxide cells and components thereof having a metal oxide electrolyte that exhibits enhanced ionic conductivity. Certain of those embodiments have two materials, at least one of which is a metal oxide, disposed so that at least some interfaces between the domains of the materials orient in a direction substantially parallel to the desired ionic conductivity.
    Type: Application
    Filed: February 9, 2011
    Publication date: June 13, 2013
    Applicants: UT-BATTELLE, LLC, C3 INTERNATIONAL, LLC
    Inventors: Leonid V. Budaragin, Mark A. Deininger, Michael M. Pozvonkov, D. Morgan Spears, II, Paul D. Fisher, Gerard M. Ludtka, Arvid E. Pasto
  • Publication number: 20130119296
    Abstract: The invention relates to methods for creating metal oxide coatings on one or more surfaces employing a magnetic field, and articles containing those coatings. Such methods involve contacting the surfaces to be treated with a metal compound, and converting the metal compound to metal oxide for example by heating the surfaces to the desired temperature in the presence of a magnetic field. The magnetic field dramatically improves, in some embodiments, the characteristics of the metal oxide coating.
    Type: Application
    Filed: April 15, 2011
    Publication date: May 16, 2013
    Applicants: UT-BATTELLE, LLC, C3 INTERNATIONAL, LLC
    Inventors: Gerard M. Ludtka, Leonid V. Budaragin, Mark A. Deininger, Michael M. Pozvonkov, D. Morgan Spears, II, Paul D. Fisher
  • Publication number: 20130089401
    Abstract: A carriage for high magnetic field environments includes a first work-piece holding means for holding a first work-piece, the first work-piece holding means being disposed in an operable relationship with a work-piece processing magnet having a magnetic field strength of at least 1 Tesla. The first work-piece holding means is further disposed in operable connection with a second work-piece holding means for holding a second work-piece so that, as the first work-piece is inserted into the magnetic field, the second work-piece is simultaneously withdrawn from the magnetic field, so that an attractive magnetic force imparted on the first work-piece offsets a resistive magnetic force imparted on the second work-piece.
    Type: Application
    Filed: December 19, 2011
    Publication date: April 11, 2013
    Applicant: UT-Battelle, LLC
    Inventors: Gerard M. Ludtka, Gail M. Ludtka, John B. Wilgen, Bart L. Murphy
  • Publication number: 20130014863
    Abstract: A magnetic field assisted processing method entails heating an iron-carbon alloy at an austenitizing temperature for a time duration sufficient for the alloy to achieve an austenitic microstructure; cooling the iron-carbon alloy to an intermediate temperature defined by a continuous cooling transformation (CCT) diagram for the iron-carbon alloy at a rate sufficient to avoid phase transformation of the austenitic microstructure, the intermediate temperature being below a bainitic knee of the CCT diagram and above a martensite start temperature; and applying a high field strength magnetic field of at least about 0.2 Tesla to the iron-carbon alloy after reaching the intermediate temperature. The field is applied for a time duration sufficient to transform the austenitic microstructure into a fine dispersion of one or more iron carbide phases in a ferrite matrix in order to produce a magnetically-processed alloy having improved ductility and strength.
    Type: Application
    Filed: July 15, 2011
    Publication date: January 17, 2013
    Inventors: Gerard M. Ludtka, Gail M. Ludtka, John B. Wilgen, Roger A. Kisner
  • Publication number: 20120324908
    Abstract: An apparatus for magnetically processing a specimen that couples high field strength magnetic fields with the magnetocaloric effect includes a high field strength magnet capable of generating a magnetic field of at least 1 Tesla and a magnetocaloric insert disposed within a bore of the high field strength magnet. A method for magnetically processing a specimen includes positioning a specimen adjacent to a magnetocaloric insert within a bore of a magnet and applying a high field strength magnetic field of at least 1 Tesla to the specimen and to the magnetocaloric insert. The temperature of the specimen changes during the application of the high field strength magnetic field due to the magnetocaloric effect.
    Type: Application
    Filed: August 4, 2011
    Publication date: December 27, 2012
    Inventors: Gerard M. Ludtka, Gail M. Ludtka, John B. Wilgen, Roger A. Kisner, Roger A. Jaramillo
  • Patent number: 8231703
    Abstract: A family of materials wherein nanostructures and/or nanotubes are incorporated into a multi-component material arrangement, such as a metallic or ceramic alloy or composite/aggregate, producing a new material or metallic/ceramic alloy. The new material has significantly increased strength, up to several thousands of times normal and perhaps substantially more, as well as significantly decreased weight. The new materials may be manufactured into a component where the nanostructure or nanostructure reinforcement is incorporated into the bulk and/or matrix material, or as a coating where the nanostructure or nanostructure reinforcement is incorporated into the coating or surface of a “normal” substrate material. The nanostructures are incorporated into the material structure either randomly or aligned, within grains, or along or across grain boundaries.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: July 31, 2012
    Assignee: Babcock & Wilcox Technical Services Y-12, LLC
    Inventors: Roland D. Seals, Edward B. Ripley, Gerard M. Ludtka
  • Publication number: 20120177905
    Abstract: A family of materials wherein nanostructures and/or nanotubes are incorporated into a multi-component material arrangement, such as a metallic or ceramic alloy or composite/aggregate, producing a new material or metallic/ceramic alloy. The new material has significantly increased strength, up to several thousands of times normal and perhaps substantially more, as well as significantly decreased weight. The new materials may be manufactured into a component where the nanostructure or nanostructure reinforcement is incorporated into the bulk and/or matrix material, or as a coating where the nanostructure or nanostructure reinforcement is incorporated into the coating or surface of a “normal” substrate material. The nanostructures are incorporated into the material structure either randomly or aligned, within grains, or along or across grain boundaries.
    Type: Application
    Filed: May 25, 2005
    Publication date: July 12, 2012
    Inventors: Roland D. Seals, Edward B. Ripley, Gerard M. Ludtka
  • Patent number: 7745765
    Abstract: An apparatus and method for altering characteristics, such as can include structural, magnetic, electrical, optical or acoustical characteristics, of an electrically-conductive workpiece utilizes a magnetic field within which the workpiece is positionable and schemes for thermally treating the workpiece by heating or cooling techniques in conjunction with the generated magnetic field so that the characteristics of the workpiece are effected by both the generated magnetic field and the thermal treatment of the workpiece.
    Type: Grant
    Filed: July 3, 2006
    Date of Patent: June 29, 2010
    Assignee: UT-Battelle, LLC
    Inventors: Roger A. Kisner, John B. Wilgen, Gerard M. Ludtka, Roger A. Jaramillo, Gail Mackiewicz-Ludtka
  • Patent number: 7601294
    Abstract: A system and method for high volume production of nanoparticles, nanotubes, and items incorporating nanoparticles and nanotubes. Microwave, radio frequency, or infrared energy vaporizes a metal catalyst which, as it condenses, is contacted by carbon or other elements such as silicon, germanium, or boron to form agglomerates. The agglomerates may be annealed to accelerate the production of nanotubes. Magnetic or electric fields may be used to align the nanotubes during their production. The nanotubes may be separated from the production byproducts in aligned or non-aligned configurations. The agglomerates may be formed directly into tools, optionally in compositions that incorporate other materials such as abrasives, binders, carbon-carbon composites, and cermets.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: October 13, 2009
    Assignee: Babcock & Wilcox Technical Services Y-12, LLC
    Inventors: Edward B. Ripley, Jonathan S. Morrell, Roland D. Seals, Gerard M. Ludtka
  • Patent number: 7161124
    Abstract: An apparatus and method for altering characteristics, such as can include structural, magnetic, electrical, optical or acoustical characteristics, of an electrically-conductive workpiece utilizes a magnetic field within which the workpiece is positionable and schemes for thermally treating the workpiece by heating or cooling techniques in conjunction with the generated magnetic field so that the characteristics of the workpiece are effected by both the generated magnetic field and the thermal treatment of the workpiece.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: January 9, 2007
    Assignee: UT-Battelle, LLC
    Inventors: Roger A. Kisner, John B. Wilgen, Gerard M. Ludtka, Roger A. Jaramillo, Gail Mackiewicz-Ludtka
  • Patent number: 6773513
    Abstract: A method using of a magnetic field to affect residual stress relief or phase transformations in a metallic material is disclosed. In a first aspect of the method, residual stress relief of a material is achieved at ambient temperatures by placing the material in a magnetic field. In a second aspect of the method, retained austenite stabilization is reversed in a ferrous alloy by applying a magnetic field to the alloy at ambient temperatures.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: August 10, 2004
    Assignee: UT-Battelle LLC
    Inventor: Gerard M. Ludtka
  • Publication number: 20040031542
    Abstract: A method using of a magnetic field to affect residual stress relief or phase transformations in a metallic material is disclosed. In a first aspect of the method, residual stress relief of a material is achieved at ambient temperatures by placing the material in a magnetic field. In a second aspect of the method, retained austenite stabilization is reversed in a ferrous alloy by applying a magnetic field to the alloy at ambient temperatures.
    Type: Application
    Filed: August 13, 2002
    Publication date: February 19, 2004
    Inventor: Gerard M. Ludtka
  • Patent number: 6208982
    Abstract: The system of the present invention may “solve” a variety of inverse physical problem types by using neural network techniques. In operation, the present invention may generate data sets characterizing a particular starting condition of a physical process (such as data sets characterizing the parameters of an initial metal die), based upon an ending condition of the physical process (such as the parameters of the metal part to be stamped by the die). In one embodiment, the system of the present invention may generate a plurality of training data sets, each training data set characterizing a sample ending condition, the physical process that results in the sample ending condition, and a sample starting condition of the physical process. The training data sets may then be applied to a neural network so as to train the network.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: March 27, 2001
    Assignee: Lockheed Martin Energy Research Corporation
    Inventors: John D. Allen, Jr., Nenad Ivezic, Gerard M. Ludtka, Thomas Zacharia
  • Patent number: 5750882
    Abstract: Method and apparatus for measuring the permeability of polymer film materials such as used in super-insulation powder-filled evacuated panels (PEPs) reduce the time required for testing from several years to weeks or months. The method involves substitution of a solid non-outgassing body having a free volume of between 0% and 25% of its total volume for the usual powder in the PEP to control the free volume of the "body-filled panel". Pressure versus time data for the test piece permit extrapolation to obtain long term performance of the candidate materials.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: May 12, 1998
    Assignee: Lockheed Martin Energy Research Corporation
    Inventors: Gerard M. Ludtka, Thomas G. Kollie, David C. Watkin, David G. Walton
  • Patent number: 4968482
    Abstract: A uranium alloy having small additions of Ti and Nb shows improved strength and ductility in cross section of greater than one inch over prior uranium alloy having only Ti as an alloying element.
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: November 6, 1990
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Gail M. Ludtka, Gerard M. Ludtka