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: 20140020797Abstract: 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: ApplicationFiled: July 20, 2012Publication date: January 23, 2014Applicant: UT-BATTELLE, LLCInventors: Michael P. BRADY, Gail M. LUDTKA, Gerard M. LUDTKA, Govindarajan MURALIDHARAN, Don M. NICHOLSON, Orlando RIOS, Yukinori YAMAMOTO
-
Patent number: 8522562Abstract: 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: GrantFiled: August 4, 2011Date of Patent: September 3, 2013Assignee: UT-Battelle, LLCInventors: Gerard M. Ludtka, Gail M. Ludtka, John B. Wilgen, Roger A. Kisner, Roger A. Jaramillo
-
Publication number: 20130146469Abstract: 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: ApplicationFiled: February 9, 2011Publication date: June 13, 2013Applicants: UT-BATTELLE, LLC, C3 INTERNATIONAL, LLCInventors: Leonid V. Budaragin, Mark A. Deininger, Michael M. Pozvonkov, D. Morgan Spears, II, Paul D. Fisher, Gerard M. Ludtka, Arvid E. Pasto
-
Publication number: 20130119296Abstract: 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: ApplicationFiled: April 15, 2011Publication date: May 16, 2013Applicants: UT-BATTELLE, LLC, C3 INTERNATIONAL, LLCInventors: Gerard M. Ludtka, Leonid V. Budaragin, Mark A. Deininger, Michael M. Pozvonkov, D. Morgan Spears, II, Paul D. Fisher
-
Publication number: 20130089401Abstract: 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: ApplicationFiled: December 19, 2011Publication date: April 11, 2013Applicant: UT-Battelle, LLCInventors: Gerard M. Ludtka, Gail M. Ludtka, John B. Wilgen, Bart L. Murphy
-
Publication number: 20130014863Abstract: 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: ApplicationFiled: July 15, 2011Publication date: January 17, 2013Inventors: Gerard M. Ludtka, Gail M. Ludtka, John B. Wilgen, Roger A. Kisner
-
Publication number: 20120324908Abstract: 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: ApplicationFiled: August 4, 2011Publication date: December 27, 2012Inventors: Gerard M. Ludtka, Gail M. Ludtka, John B. Wilgen, Roger A. Kisner, Roger A. Jaramillo
-
Patent number: 8231703Abstract: 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: GrantFiled: May 25, 2005Date of Patent: July 31, 2012Assignee: Babcock & Wilcox Technical Services Y-12, LLCInventors: Roland D. Seals, Edward B. Ripley, Gerard M. Ludtka
-
Publication number: 20120177905Abstract: 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: ApplicationFiled: May 25, 2005Publication date: July 12, 2012Inventors: Roland D. Seals, Edward B. Ripley, Gerard M. Ludtka
-
Patent number: 7745765Abstract: 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: GrantFiled: July 3, 2006Date of Patent: June 29, 2010Assignee: UT-Battelle, LLCInventors: Roger A. Kisner, John B. Wilgen, Gerard M. Ludtka, Roger A. Jaramillo, Gail Mackiewicz-Ludtka
-
Patent number: 7601294Abstract: 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: GrantFiled: May 2, 2006Date of Patent: October 13, 2009Assignee: Babcock & Wilcox Technical Services Y-12, LLCInventors: Edward B. Ripley, Jonathan S. Morrell, Roland D. Seals, Gerard M. Ludtka
-
Patent number: 7161124Abstract: 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: GrantFiled: April 19, 2005Date of Patent: January 9, 2007Assignee: UT-Battelle, LLCInventors: Roger A. Kisner, John B. Wilgen, Gerard M. Ludtka, Roger A. Jaramillo, Gail Mackiewicz-Ludtka
-
Patent number: 6773513Abstract: 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: GrantFiled: August 13, 2002Date of Patent: August 10, 2004Assignee: UT-Battelle LLCInventor: Gerard M. Ludtka
-
Publication number: 20040031542Abstract: 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: ApplicationFiled: August 13, 2002Publication date: February 19, 2004Inventor: Gerard M. Ludtka
-
Method and apparatus for solving complex and computationally intensive inverse problems in real-time
Patent number: 6208982Abstract: 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: GrantFiled: July 30, 1997Date of Patent: March 27, 2001Assignee: Lockheed Martin Energy Research CorporationInventors: John D. Allen, Jr., Nenad Ivezic, Gerard M. Ludtka, Thomas Zacharia -
Patent number: 5750882Abstract: 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: GrantFiled: April 4, 1997Date of Patent: May 12, 1998Assignee: Lockheed Martin Energy Research CorporationInventors: Gerard M. Ludtka, Thomas G. Kollie, David C. Watkin, David G. Walton
-
Patent number: 4968482Abstract: 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: GrantFiled: February 23, 1990Date of Patent: November 6, 1990Assignee: The United States of America as represented by the United States Department of EnergyInventors: Gail M. Ludtka, Gerard M. Ludtka