James R Morris

James R Morris

Materials Theory Group Leader, Materials Science & Technology Division


James Morris is a theorist working on a variety of materials science problems, including alloy design, metallic liquids and glasses, and properties of confined fluids in porous media. He is presently Materials Theory Group Leader in the Materials Science & Technology Division.

Professional Experience:

  • 2016 – present: Group Leader, Materials Theory Group
  • 2014 – 2017: ORNL Lab Coordinator, Basic Energy Sciences - Materials Science & Engineering Program
  • 2005 – present: Faculty, Department of Materials Science & Engineering, University of Tennessee
  • 2003 – present: Staff,Oak Ridge National Laboratory
  • 1996 – 2003 Staff, Ames Laboratory / Iowa State University


  • Ames Laboratory Postdoc 1992-1996 Physics
  • Cornell University Ph.D. 1992 Physics
  • Colorado State University B.S. 1987 Physics


  • R&D 100 Award Winner for “ACMZ alloys for next generation automotive engines” (2017) (Amit Shyam, PI; Fiat Chrysler Automobiles US LLC and Nemak U.S.A. Inc., co-developers)
  • Member, Editorial board of Intermetallics (2014-present).
  • University of Tennesee’s Materials Science & Engineering Award, “Faculty Excellence in Teaching,” 2012.
  • AMS society J. Willard Gibbs Phase Equilibria Award Selection Committee, 2010-2013.
  • TMS society John Bardeen Award Selection Committee, 2009-2012.
  • ASM Phase Diagram Committee, (2004-2012).
  • TMS society Electronic, Magnetic & Photonic Materials Division’s Public and Governmental Affairs Committee representative (2008-2011).
  • Scientific Review Panel, DOE Basic Research for the Hydrogen Fuel Initiative, March 2007.
  • Chair, Chemistry and Physics of Materials Committee, TMS Society (2005-2008).


Selected publications (out of >100):

  1. R. J. Olsen, A. K. Gillespie, C. I. Contescu, J. W. Taylor, P. Pfeifer, and J. R. Morris, “A phase transition of H2 in subnanometer pores observed at 75 Kelvin,” ACS Nano 11, 11617 (2017).
  2. Yungok Ihm, Valentino R. Cooper, Lukas Vlcek, Pieremanuele Canepa, Timo Thonhauser, Ji Hoon Shim, and James R. Morris, “Continuum Model of Gas Uptake for Inhomogeneous Fluids,” J. Phys. Chem. C 121, 17625 (2017).
  3. Z. Wu, M. C. Troparevsky, Y. F. Gao, J. R. Morris, G. M. Stocks, H. Bei, “Phase stability, physical properties and strengthening mechanisms of concentrated solid solution alloys,” Curr. Opin. Solid State Mater. Sci. 21, 267 (2017).
  4. M. Claudia Troparevsky, James R. Morris, Paul R. C. Kent, Andrew R. Lupini, and G. Malcolm Stocks, “Criteria for predicting the formation of single-phase high-entropy alloys,” Phys. Rev. X 5, 011041 (2015).
  5. Ling Li, James Morris, Michael Koehler, Zhiling Dun, Haidong Zhou, Jiaqiang Yan, David Mandrus, Veerle Keppens, “Structural and magnetic phase transitions in EuTi1-xNbxO3,” Phys. Rev. B 92, 024109 (2015) (Editor’s Choice).
  6. M. Claudia Troparevsky, James R. Morris, Markus Daene, Yang Wang, Andrew R. Lupini, and G. Malcolm Stocks, “Beyond atomic sizes and Hume-Rothery Rules: Understanding and predicting high entropy alloys,” JOM 67, 2350 (2015).
  7. J. R. Morris, V. R. Cooper and F. W. Averill, “Theoretical studies of Ir5Th and Ir5Ce nanoscale precipitates in Ir,” Phil. Mag. 94, 991 (2014).
  8. M. Krcmar and James R. Morris, “A comparative first-principles study of martensitic phase transformations in TiPd2 and TiPd intermetallics,” J. Phys. C 26, 135401 (2014).           
  9. D. Wu, J. R. Morris and T. G. Nieh, “Effect of tip radius on the incipient plasticity of chromium studied by nanoindentation,” Scripta Mat. 94, 52 (2015).
  10. C. I. Contescu, H. Zhang, R. Olsen, E. Mamontov, J. R. Morris, and N. C. Gallego, “Isotope effect on adsorbed quantum phases: hydrogen and deuterium on nanoporous carbon,” Phys. Rev. Lett. 110, 236102 (2013).