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  • Rubber meets the road with new ORNL carbon, battery technologies
    OAK RIDGE, Tenn., Aug. 27, 2014 - (Amit Naskar) Recycled tires could see new life in lithium-ion batteries that provide power to plug-in electric vehicles and store energy produced by wind and solar, say researchers at the Department of Energy’s Oak Ridge National Laboratory.
  • Five ORNL scientists rated among world's most influential
    (ORNL in the News) Aug. 4, 2014 - Five Oak Ridge National Laboratory physicists, including Deputy for Science and Technology Ramamoorthy Ramesh, have been named by Thomson Reuters as some of the best and brightest of our time. Joining Ramesh as the world’s most influential scientific minds of 2014 are Michael McGuire, Brian Sales, Athena Safa-Sefat, and David Singh. While McGuire and Sefat are relatively early in their careers, Ramesh, Sales, and Singh are established leaders...8/1

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  • Materials - Less costly carbon fiber
    June 03, 2014 - A newly patented system that uses microwave energy could greatly reduce the cost of producing carbon fiber from polymer precursors while cutting the amount of effluent gases. The technology, invented by a team that includes Felix Paulauskas of Oak Ridge National Laboratory, consists of an elongated atmosphere-controlled chamber in which the material undergoes complete carbonization.

 

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What problem are you working on?

  • Athena Safa-Sefat - Superconductors - published on Apr 21, 2014 - Athena Safa Sefat explains how scientists are improving the superconductivity of materials and eliminating wasted energy.

  • Valentino Cooper - Complex Materials - published on Apr 17, 2014 - Valentino Cooper uses some of the world's most powerful computing to understand how materials work at subatomic levels, studying breakthroughs such as piezoelectrics, which convert mechanical stress to electrical energy.
  • Science Saturday Resources - Jan. 18, 2014 - High Temp Superconductors: Wanna Levitate? - Team: Amit Goyal, Thomas Maier, and Athena Safa-Sefat, Michael Coffey, Gene Ice. Master Teacher: Frank Wood, Oak Ridge High School

 

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ORNL's Ludtka receives 1994 Ernest O. Lawrence Award

     
     

Oak Ridge National Laboratory researcher Gerard M. Ludtka has been named a winner of the Department of Energy's Ernest Orlando Lawrence Award, which honors midcareer scientists and engineers for exceptional contributions in research and development. He received this award for significant contributions to materials technology through the development and implementation of superplastic forming of uranium alloys and through the development of a method to predict the effects of quenching on microstructure and residual stresses. These contributions improved designs, reduced costs, increased efficiency, and minimized waste in the production of uranium weapons components.

Gerald M. Ludtka's development and implementation of superplastic forming processes for uranium alloys revolutionized the manufacturing of hemispherical weapons components. Dr Ludtka recognized that uranium alloys had the potential for superplasticity and attendant advantages for weapons fabrication. He characterized the superplastic behavior of uranium alloys, developed simple superplastic forming equipment for prototype parts, overcame a variety of engineering problems, and directed the scale-up and implementation of superplastic forming for the manufacture of weapons components. His process provided substantial improvements; including the use of much simpler forming equipment, the fabrication of parts much closer to their final shapes, significant reductions in the amount of waste materials, and reductions in the costs of manufacturing.

Gerard M. Ludtka was born in Philadelphia in 1950. He holds B.S. and M.S. degrees from Drexel University and a Ph.D. degree in metallurgy and materials science from Carnegie-Mellon University. He worked in failure analysis of helicopter components and titanium metallurgy at the Boeing-Vertol Company in Philadelphia and for General Motors Research Laboratories in Warren, Michigan. From 1982 to 1991, he worked for DOE's Oak Ridge Y-12 Plant. Currently, he is with DOE's Oak Ridge National Laboratory in the Materials Process Modeling Group of Metals and Ceramics Division. Dr. Ludtka has twelve patents (issued or under review), over 30 publications in the open literature, and has received DOE's Weapons Complex Award of Excellence three times, the Y-12 Plant Award of Excellence twice, and the Martin Marietta Energy Systems Award of Excellence three times. (Martin Marietta manages Oak Ridge National Laboatory for DOE.)