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Energy and Environment Directorate

Ram Devanathan

Ram Devanathan

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352
(509) 371-6487

Biography

Dr. Devanathan is the Technical Group Manager for the Reactor Materials and Mechanical Design group. He has more than 25 years of experience in materials research using multiscale computer simulations integrated with materials characterization. He serves as Adjunct Research Professor in the School of Mechanical and Materials Engineering at Washington State University. He has mentored postdoctoral researchers, and graduate, undergraduate, and high school students through programs such as Young Women in Science, Science Undergraduate Laboratory Internship (SULI), and the Mickey Leland Fellowship. Dr. Devanathan was selected as a Chair of the 2015 Fall Meeting of the Materials Research Society. He is a Fellow of the American Ceramic Society and Chair Elect of the Richland Section of the American Chemical Society.

Research Interests

  • Degradation of spent nuclear fuel canisters
  • Swift heavy ion damage in materials
  • Proton and ion transport in materials for energy conversion and storage
  • Water transport in graphene oxide membrane
  • Ceramics for nuclear waste forms, fuels and fusion reactor applications

Education and Credentials

  • MBA, General Management, Washington State University, Pullman, WA (2011)
  • Ph.D., Materials Science and Engineering, Northwestern University, Evanston, IL (1993)
  • B.Tech, Metallurgical Engineering, IIT Madras, Chennai, India (1988)

Affiliations and Professional Service

  • American Association for Advancement of Science
  • American Ceramic Society (Member, Awards and Publications Committees)
  • American Chemical Society (Chair-Elect, Richland Section)
  • Materials Research Society (Chair, 2015 Fall Meeting)
  • The Minerals, Metals & Materials Society

Awards and Recognitions

  • Fellow of the American Ceramic Society (2015)
  • Richard M. Fulrath Award, American Ceramic Society (2012)
  • Outstanding Mentor Award of the US Department of Energy (2010)
  • Battelle Community Spirit Award (2008)

PNNL Publications

2017

  • Devanathan R. 2017. "Review of "Computational Thermodynamics of Materials"." MRS Bulletin 42(2):162-163.  doi:10.1557/mrs.2017.21
  • Setyawan W, DJ Senor, and R Devanathan. 2017. "Insights on Amorphization of Lithium Aluminate from Atomistic Simulation." Journal of Physical Chemistry C 121(14):7635-7642.  doi:10.1021/acs.jpcc.6b12562
  • Jensen PJ, T Tran, BG Fritz, FC Rutz, SB Ross, AM Gorton, R Devanathan, P Plante, and K Trainor. 2017. "Preliminary Evaluation of the DUSTRAN Modeling Suite for Modeling Atmospheric Chloride Transport." Air Quality, Atmosphere and Health 10(1):25-31.  doi:10.1007/s11869-016-0404-5

2016

  • Devanathan R. 2016. "Herbert Frohlich: A Physicist Ahead of his Time [Book Review]." MRS Bulletin 41(2):166. 
  • Devanathan R. 2016. "Moore's Law: The Life of Gordon Moore, Silicon Valley's Quiet Revolutionary Arnold Thackray, David C. Brock, and Rachel Jones [Book Review]." MRS Bulletin 41(5):412-413.  doi:10.1557/mrs.2016.107
  • Devanathan R. 2016. "Review of Nanomaterials in Extreme Environments." MRS Bulletin 41(10):817-818.  doi:10.1557/mrs.2016.226
  • Devanathan R, DG Chase-Woods, Y Shin, and DW Gotthold. 2016. "Molecular Dynamics Simulations Reveal that Water Diffusion between Graphene Oxide Layers is Slow." Scientific Reports 6:29484.  doi:10.1038/srep29484
  • Dong L, Y Li, R Devanathan, and F Gao. 2016. "Molecular dynamics simulation of the structural, elastic, and thermal properties of pyrochlores." RSC Advances 6(47):41410-41419.  doi:10.1039/c6ra04779c
  • Shin Y, W Liu, B Schwenzer, S Manandhar, DG Chase-Woods, MH Engelhard, R Devanathan, LS Fifield, WD Bennett, B Ginovska-Pangovska, and DW Gotthold. 2016. "Graphene oxide membranes with high permeability and selectivity for dehumidification of air." Carbon 106:164-170.  doi:10.1016/j.carbon.2016.05.023

2015

  • Devanathan R, M Krack, and M Bertolus. 2015. "Classical Molecular Dynamics Simulation of Nuclear Fuel." Chapter 13 in State of the Art Report on Multiscale Modeling of Nuclear Fuels, vol. NEA/NSC/R/(2015)5, ed. S Massara, pp. 236-245.  OECD Publishing, Paris, France. 
  • Devanathan R. 2015. "Review of “Metals in Past Societies: A Global Perspective on Indigenous African Metallurgy” by Shadreck Chirikure, Springer, 2015." MRS Bulletin 40(10):880.  doi:10.1557/mrs.2015.251
  • Bertolus M, M Krack, M Freyss, and R Devanathan. 2015. "Assessment of current atomic scale modelling methods for the investigation of nuclear fuels under irradiation: Example of uranium dioxide." Chapter 14 in State of the Art Report on Multiscale Modeling of Nuclear Fuels, vol. NEA/NSC/R/(2015)5, ed. S Massara, pp. 246-276.  OECD Publishing, Paris, France. 
  • Jensen PJ, DJ Sunderland, SB Ross, RO Montgomery, BD Hanson, and R Devanathan. 2015. "Gap Analysis to Support Modeling the Long-Term Degradation of Used Nuclear Fuel Canisters." In International High-Level Radioactive Waste Management: Real World Solutions for Integrated Management of Used Fuel and HLW, April 12-16, 2015, Charleston, South Carolina.  American Nuclear Society, La Grange Park, IL. 
  • Kurata M, and R Devanathan. 2015. "Free Energy and Heat Capacity." Chapter 10 in State of the Art Report on Multiscale Modeling of Nuclear Fuels, vol. NEA/NSC/R/(2015)5, ed. S Massara, pp. 197-208.  OECD Publishing, Paris, France. 
  • Lang M, R Devanathan, M Toulemonde, and C Trautmann. 2015. "Advances in Understanding of Swift Heavy-Ion Tracks in Complex Ceramics." Current Opinion in Solid State and Materials Science 19(1):39-48.  doi:10.1016/j.cossms.2014.10.002
  • Tran TT, PJ Jensen, BG Fritz, FC Rutz, and R Devanathan. 2015. Evaluation of DUSTRAN Software System for Modeling Chloride Deposition on Steel CanistersPNNL-24500, Pacific Northwest National Laboratory, Richland, WA. 
  • Yablinsky C, R Devanathan, J Pakarinen, J Gan, D Severin, C Trautmann, and TR Allen. 2015. "Characterization of swift heavy ion irradiation damage in ceria." Journal of Materials Research 30(9):1473-1484.  doi:10.1557/jmr.2015.43

2014

  • Siciliano ER, R Devanathan, ZC Guillen, RT Kouzes, and JE Schweppe. 2014. Quality Assurance Procedures for ModCat Database Code Files PNNL-23353, Pacific Northwest National Laboratory, Richland, WA. 
  • Zarkadoula E, R Devanathan, WJ Weber, M Seaton, I Todorov, K Nordlund, MT Dove, and K Trachenko. 2014. "High-energy radiation damage in zirconia: modeling results ." Journal of Applied Physics 115(8):083507.  doi:10.1063/1.4866989

2013

  • Devanathan R, F Gao, and CJ Sundgren. 2013. "Role of cation choice in the radiation tolerance of pyrochlores." RSC Advances 3(9):2901-2909.  doi:10.1039/C2RA22745B
  • Devanathan R, NB Idupulapati, MD Baer, CJ Mundy, and M Dupuis. 2013. "Ab initio molecular dynamics simulation of proton hopping in a model polymer membrane." Journal of Physical Chemistry B 117(51):16522-16529.  doi:10.1021/jp410229u
  • Anheier NC, Jr, JD Suter, HA Qiao, ES Andersen, EJ Berglin, M Bliss, BD Cannon, R Devanathan, A Mendoza, and DM Sheen. 2013. Technical Readiness and Gaps Analysis of Commercial Optical Materials and Measurement Systems for Advanced Small Modular ReactorsPNNL-22622 Rev. 1, Pacific Northwest National Laboratory, Richland, WA. 
  • Guedes S, P Moreira, R Devanathan, WJ Weber, and JC Hadler. 2013. "Improved zircon fission-track annealing model based on reevaluation of annealing data." Physics and Chemistry of Minerals 40(2):93-106.  doi:10.1007/s00269-012-0550-8
  • Jiang W, R Devanathan, CJ Sundgren, M Ishimaru, K Sato, T Varga, S Manandhar, and A Benyagoub. 2013. "Ion Tracks and Microstructures in Barium Titanate Irradiated with Swift Heavy Ions: A Combined Experimental and Computational Study." Acta Materialia 61(20):7904-7916.  doi:10.1016/j.actamat.2013.09.029

2012

  • Devanathan R, and M Dupuis. 2012. "Insight from molecular modelling: does the polymer side chain length matter for transport properties of perfluorosulfonic acid membranes?" Physical Chemistry Chemical Physics. PCCP 14(32):11281-11295.  doi:10.1039/C2CP24132C
  • Devanathan R, NB Idupulapati, and M Dupuis. 2012. "Molecular modeling of the morphology and transport properties of two direct methanol fuel cell membranes: phenylated sulfonated poly(ether ether ketone ketone) versus Nafion." Journal of Materials Research 27(15):1927-1938.  doi:10.1557/jmr.2012.165
  • Du J, R Devanathan, LR Corrales, and WJ Weber. 2012. "First-principles calculations of the electronic structure, phase transition and properties of ZrSiO4 polymorphs." Computational and Theoretical Chemistry 987(1):62-70.  doi:10.1016/j.comptc.2011.03.033
  • Gao F, HY Xiao, Y Zhou, R Devanathan, SY Hu, Y Li, X Sun, and MA Khaleel. 2012. "Ab Initio Study of Defect Properties in YPO4." Computational Materials Science 54:170-175.  doi:10.1016/j.commatsci.2011.10.005
  • Kumar A, R Devanathan, V Shutthanandan, SVNT Kuchibhatla, AS Karakoti, Y Yang, S Thevuthasan, and S Seal. 2012. "Radiation-Induced Reduction of Ceria in Single and Polycrystalline Thin Films." Journal of Physical Chemistry C 116(1):361-366.  doi:10.1021/jp209345w

2011

  • Devanathan R, F Gao, and X Sun. 2011. Challenges in Modeling the Degradation of Ceramic Waste FormsPNNL-20738, Pacific Northwest National Laboratory, Richland, WA. 
  • Costantini JM, F Beuneu, SE Morrison-Smith, R Devanathan, and WJ Weber. 2011. "Paramagnetic defects in electron-irradiated yttria-stabilized zirconia: Effect of yttria content." Journal of Applied Physics 110(12):Article No. 123506.  doi:10.1063/1.3666062
  • Idupulapati NB, R Devanathan, and M Dupuis. 2011. "Atomistic Simulations of Perfluoro Phosphonic and Phosphinic Acid Membranes and Comparisons to Nafion." Journal of Physical Chemistry B 115(12):2959-2969. 
  • Idupulapati NB, R Devanathan, and M Dupuis. 2011. "Molecular Structure and Transport Dynamics in Perfluoro Sulfonyl Imide Membranes ." Journal of Physics. Condensed Matter 23(23):Article No. 234106.  doi:10.1088/0953-8984/23/23/234106
  • Lee CW, RK Behera, S Okamoto, R Devanathan, ED Wachsman, SR Phillpot, and SB Sinnott. 2011. "Stabilization mechanisms of LaFeO3 (010) surfaces determined with first principles calculations." Journal of the American Ceramic Society 94(6):1931-1939.  doi:10.1111/j.1551-2916.2010.04318.x
  • Lins RD, R Devanathan, and M Dupuis. 2011. "Modeling the Nanophase Structural Dynamics of Phenylated Sulfonated Poly Ether Ether Ketone Ketone (Ph-SPEEKK) Membranes as a Function of Hydration." Journal of Physical Chemistry B 115(8):1817-1824 .  doi:10.1021/jp110331m
  • Moore EE, LR Corrales, T Desai, and R Devanathan. 2011. "Molecular dynamics simulation of Xe bubble nucleation in nanocrystalline UO2 nuclear fuel." Journal of Nuclear Materials 419(1-3):140-144.  doi:10.1016/j.jnucmat.2011.08.052
  • Sanghavi RP, R Devanathan, MI Nandasiri, SVNT Kuchibhatla, L Kovarik, S Thevuthasan, and S Prasad. 2011. "Integrated experimental and modeling study of the ionic conductivity of samaria-doped ceria thin films." Solid State Ionics 204-205:13-19.  doi:10.1016/j.ssi.2011.10.007

2010

  • Devanathan R, A Venkatnathan, RJ Rousseau, M Dupuis, T Frigato, W Gu, and VH Helms. 2010. "Atomistic Simulation of Water Percolation and Proton Hopping in Nafion Fuel Cell Membrane." Journal of Physical Chemistry B 114(43):13681-13690.  doi:10.1021/jp103398b
  • Devanathan R, and WJ Weber. 2010. "Simulation of collision cascades and thermal spikes in ceramics." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 268(19):2857-2862.  doi:10.1016/j.nimb.2010.05.047
  • Devanathan R, F Gao, X Sun, and MA Khaleel. 2010. Fundamental Science-Based Simulation of Nuclear Waste FormsPNNL-19740, Pacific Northwest National Laboratory, Richland, WA. 
  • Devanathan R, L Van Brutzel, A Chartier, C Gueneau, AE Mattsson, V Tikare, T Bartel, TM Besmann, M Stan, and P Van Uffelen. 2010. "Modeling and Simulation of Nuclear Fuel Materials." Energy & Environmental Science 3(10):1406-1426.  doi:10.1039/C0EE00028K
  • Devanathan R, WJ Weber, and JD Gale. 2010. "Radiation tolerance of ceramics-Insights from atomistic simulation of damage accumulation in pyrochlores." Energy & Environmental Science 3(10):1551-1559.  doi:10.1039/C0EE00066C
  • Devanathan R. 2010. "Proton Exchange Membranes for Fuel Cells." In Energy Production and Storage - Inorganic Chemical Strategies for a Warming World, ed. RH Crabtree, pp. 89-100.  Wiley, Hoboken, NJ. 
  • Hu SY, Y Li, X Sun, F Gao, R Devanathan, CH Henager, Jr, and MA Khaleel. 2010. "Application of Phase-field Method in Predicting Gas Bubble Microstructure Evolution in Nuclear Fuels." International journal of materials research 10(4):515-522. 
  • Chang TM, LX Dang, R Devanathan, and M Dupuis. 2010. "Structure and Dynamics of N, N-diethyl-N-methylammonium Triflate Ionic Liquid, Neat and with Water, from Molecular Dynamics Simulations." Journal of Physical Chemistry A 114(48):12764-12774.  doi:10.1021/jp108189z
  • Idupulapati NB, R Devanathan, and M Dupuis. 2010. "Ab Initio Study of Hydration and Proton Dissociation in Ionomer Membranes ." Journal of Physical Chemistry A 114(25):6904-6912. 
  • Moreira PA, R Devanathan, and WJ Weber. 2010. "Atomistic Simulation of Track Formation by Energetic Recoils in Zircon." Journal of Physics. Condensed Matter 22:Art. No. 395008. 
  • Yu Z, R Devanathan, W Jiang, P Nachimuthu, V Shutthanandan, LV Saraf, CM Wang, SVNT Kuchibhatla, and S Thevuthasan. 2010. "Integrated Experimental and Modeling Study of Ionic Conductivity of Scandia-Stabilized Zirconia Thin Films." Solid State Ionics 181(8-10):367-371.  doi:10.1016/j.ssi.2010.01.024
  • Zhang J, M Lang, RC Ewing, R Devanathan, WJ Weber, and M Toulemonde. 2010. "Nanoscale Phase Transitions under Extreme Conditions within an Ion Track." Journal of Materials Research 25(7):1344-1351. 

2009

  • Devanathan R, J Yu, and WJ Weber. 2009. "Energetic recoils in UO2 simulated using five different potentials." Journal of Chemical Physics 130(17):Art. No. 174502.  doi:10.1063/1.3125967
  • Devanathan R, S Thevuthasan, and JD Gale. 2009. "Defect Interactions and Ionic Transport in Scandia Stabilized Zirconia." Physical Chemistry Chemical Physics. PCCP 11(26):5506-5511. 
  • Devanathan R. 2009. "Radiation damage evolution in ceramics." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 267(18):3017-3021.  doi:10.1016/j.nimb.2009.06.020
  • Moreira PA, R Devanathan, J Yu, and WJ Weber. 2009. "Molecular dynamics simulation of threshold displacement energies in zircon." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 267(20):3431-3436.  doi:10.1016/j.nimb.2009.07.023
  • Yu J, R Devanathan, and WJ Weber. 2009. "First-principles study of defects and phase transition in UO2." Journal of Physics. Condensed matter 21(43):Art. No. 435401.  doi:10.1088/0953-8984/21/43/435401
  • Yu J, R Devanathan, and WJ Weber. 2009. "Unified Interatomic Potential for Zircon, Zirconia and Silica Systems." Journal of Materials Chemistry 19(23):3923-3930.  doi:10.1039/b902767j

2008

  • Devanathan R, and WJ Weber. 2008. "Dynamic annealing of defects in irradiated zirconia-based ceramics." Journal of Materials Research 23(3):593-597.  doi:10.1557/JMR.2008.0104
  • Devanathan R. 2008. "Recent developments in proton exchange membranes for fuel cells." Energy & Environmental Science 1(1):101-119.  doi:10.1039/b808149m
  • Gao F, LW Campbell, YL Xie, R Devanathan, AJ Peurrung, and WJ Weber. 2008. "Electron-Hole Pairs Created by Photons and Intrinsic Properties in Detector Materials." IEEE Transactions on Nuclear Science 55(3):1079-1085.  doi:10.1109/TNS.2007.908917

2007

  • Devanathan R, A Venkatnathan, and M Dupuis. 2007. "Atomistic Simulation of Nafion Membrane: 2. Dynamics of Water Molecules and Hydronium Ions." Journal of Physical Chemistry B 111:13006-13013.  doi:10.1021/jp0761057
  • Devanathan R, A Venkatnathan, and M Dupuis. 2007. "Atomistic Simulation of Nafion Membrane: I. Effect of Hydration on Membrane Nanostructure." Journal of Physical Chemistry B 111(28):8069-8079.  doi:10.1021/jp0726992
  • Devanathan R, and WJ Weber. 2007. "Radiation Effects in a Model Ceramic for Nuclear Waste Disposal." JOM. The Journal of the Minerals, Metals and Materials Society 59(4):32-35. 
  • Devanathan R, F Gao, and WJ Weber. 2007. "Atomistic modeling of amorphous silicon carbide using a bond-order potential." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 255(1):130-135.  doi:10.1016/j.nimb.2006.11.045
  • Devanathan R, P Durham, J Du, LR Corrales, and EM Bringa. 2007. "Molecular dynamics simulation of amorphization in forsterite by cosmic rays." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 255(1):172-176.  doi:10.1016/j.nimb.2006.11.021
  • Campbell LW, F Gao, R Devanathan, and WJ Weber. 2007. "Model of Plasmon Decay for Electron Cascade Simulation." Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 579(1):454-457.  doi:10.1016/j.nima.2007.04.095
  • Gao F, LW Campbell, R Devanathan, YL Xie, LR Corrales, AJ Peurrung, and WJ Weber. 2007. "Monte Carlo Method For Simulating Gamma-Ray Interaction With Materials: A Case Study on Si." Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 579(1):292-296.  doi:10.1016/j.nima.2007.04.063
  • Gao F, LW Campbell, R Devanathan, YL Xie, Y Zhang, AJ Peurrung, and WJ Weber. 2007. "Gamma-Ray Interaction in Ge: A Monte Carlo Simulation." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 255(1):286-290.  doi:10.1016/j.nimb.2006.11.031
  • Gao F, Y Zhang, R Devanathan, M Posselt, and WJ Weber. 2007. "Atomistic Simulations of Epitaxial Recrystallization in 4H-SiC along the [0001] Direction." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 255(1):136-140.  doi:10.1016/j.nimb.2006.11.016
  • Venkatnathan A, R Devanathan, and M Dupuis. 2007. "Atomistic Simulations of Hydrated Nafion and Temperature Effects on Hydronium Ion Mobility." Journal of Physical Chemistry B 111(25):7234-7244.  doi:10.1021/jp0700276
  • Weber WJ, LR Corrales, R Devanathan, F Gao, and HL Heinisch. 2007. COMPUTER SIMULATION OF RADIATION EFFECTS IN SOLIDS, Proceedings of the Eighth International Conference on Computer Simulations of Radiation Effects in Solids (COSIRES 2006) - Nuclear Instruments and Methods in Physics Research, Section B Vol. 255, Issue 1 (2007).  Elsevier, Amsterdam, Netherlands. 
  • Zhang Y, F Gao, R Devanathan, and WJ Weber. 2007. "A Fast Screening Technique to Evaluate Detector Response." Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 579(1):108-112.  doi:10.1016/j.nima.2007.04.019

2006

  • Devanathan R, LR Corrales, F Gao, and WJ Weber. 2006. "Signal Variance in Gamma Ray Detectors - A Review." Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 565(2):637-649.  doi:10.1016/j.nima.2006.05.085
  • Devanathan R, LR Corrales, WJ Weber, A Chartier, and C Meis. 2006. "Atomistic Simulation of Collision Cascades in Zircon." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 250(1-2):46-49.  doi:10.1016/j.nimb.2006.04.109
  • Devanathan R, LR Corrales, WJ Weber, A Chartier, and C Meis. 2006. "Molecular Dynamics Simulation of Energetic Uranium Recoil Damage in Zircon." Molecular Simulation 32(12-13):1069-1077. 
  • Corrales LR, and R Devanathan. 2006. "Characterization of Energy Conservation in Primary Knock-On Atom Cascades: Ballistic Phase Effects on Variable Time Steps." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 250(1-2):6-11.  doi:10.1016/j.nimb.2006.04.075
  • Devanathan R, WJ Weber, SC Singhal, and JD Gale. 2006. "Computer Simulation of Defects and Oxygen Transport in Yttria-Stabilized Zirconia." Solid State Ionics 177(15-16):1251-1258.  doi:10.1016/j.ssi.2006.06.030
  • Du J, R Devanathan, LR Corrales, WJ Weber, and AN Cormack. 2006. "Short- and medium-range structure of amorphous zircon from molecular dynamics simulations." Physical Review. B, Condensed Matter 74(21):art. no.:214204, (14 pages).  doi:10.1103/PhysRevB.74.214204
  • Gao F, R Devanathan, T Oda, and WJ Weber. 2006. "Development of Partial-Charge Potential for GaN." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 250(1-2):50-53.  doi:10.1016/j.nimb.2006.04.082
  • Gao F, R Devanathan, Y Zhang, M Posselt, and WJ Weber. 2006. "Atomic-Level Simulation of Epitaxial Recrystallization and Phase Transformation in SiC." Journal of Materials Research 21(6):1420-1426.  doi:10.1557/JMR.2006.0176

2005

  • Devanathan R, and WJ Weber. 2005. "Computational and Experimental Studies of the Radiation Response of Gd2Ti2O7 Pyrochlore." In Environmental Issues and Waste Management Technologies in the Ceramic and Nuclear Industries XI, Ceramic Transactions, vol. 176, ed. CC Herman, S Marra, DR Spearing, L Vance, and JD Vienna, pp. 43-54.  The American Ceramic Society, Westerville, OH. 
  • Devanathan R, and WJ Weber. 2005. "Insights into the Radiation Response of Pyrochlores from Calculations of Threshold Displacement Events." Journal of Applied Physics 98(8):086110. 
  • Devanathan R, F Gao, and WJ Weber. 2005. "Computer Simulation of Displacement Damage in Silicon Carbide." In Materials for Space Applications, November 29-December 3, 2004, Boston, Massachusetts, U.S.A. Materials Research Society Symposium Proceedings, vol. 851, ed. M. Chipara, D. L. Edwards, S. Phillips, and R. Benson, pp. 317-322 .  Materials Research Society, Warrendale, PA. 
  • Devanathan R, LR Corrales, WJ Weber, A Chartier, and C Meis. 2005. "Molecular Dynamics Simulation of Defect Production in Collision Cascades in Zircon." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 228(1-4):299-303. 
  • Corrales LR, A Chartier, and R Devanathan. 2005. "Excess kinetic energy dissipation in materials." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 228(1-4):274-281. 
  • Gao F, R Devanathan, Y Zhang, and WJ Weber. 2005. "Annealing Simulations of Nano-Sized Amorphous Structures in SiC." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 228(1-4):282-287. 
  • Thomas BS, NA Marks, LR Corrales, and R Devanathan. 2005. "Threshold displacement energies in rutile TiO2: A molecular dynamics simulation study." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 239(3):191-201. 
  • Weber WJ, F Gao, R Devanathan, W Jiang, and Y Zhang. 2005. "Defects and Ion-Solid Interactions in Silicon Carbide." Materials Science Forum 475-479(1-5):1345-1350. 

2004

  • Devanathan R, F Gao, and WJ Weber. 2004. "Amorphization of Silicon Carbide by Carbon Displacement." Applied Physics Letters 84(19):3909-3911. 
  • Devanathan R, F Gao, and WJ Weber. 2004. "Molecular Dynamics Simulation of Point Defect Accumulation in 3C-SiC." In Radiation Effects and Ion Beam Processing of Materials, Materials Research Society Symposium Proceedings held December 1-5, 2003, Boston, Massachusetts, vol. 792, ed. LM Wang, R Fromknecht, LL Snead, DF Downey and H Takahashi, pp. 479-484, Paper No. R4.1.  Materials Research Society, Warrendale, PA. 
  • Devanathan R, LR Corrales, WJ Weber, A Chartier, and C Meis. 2004. "Molecular Dynamics Simulation of Disordered Zircon." Physical Review. B, Condensed Matter and Materials Physics 69(6):064115, 1-9. 
  • Weber WJ, F Gao, R Devanathan, and W Jiang. 2004. "The Efficiency of Damage Production in Silicon Carbide." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 218:68-73. 
  • Weber WJ, F Gao, R Devanathan, W Jiang, and CM Wang. 2004. "Ion-Beam Induced Defects and Nanoscale Amorphous Clusters in Silicon Carbide." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 216:25-35. 
  • Weber WJ, F Gao, R Devanathan, W Jiang, and Y Zhang. 2004. "Experimental and Computational Studies of Ion-Solid Interactions in Silicon Carbide." In Radiation Effects and Ion Beam Processing of Materials, Materials Research Society Symposium Proceedings held December 1-5, 2003, Boston, Massachusetts, vol. 792, ed. LM Wang, R Fromknecht, LL Snead, DF Downey and H Takahashi, pp. 261-271, Paper No. R5.1.  Materials Research Society, Warrendale, PA. 
  • Zhang Y, V Shutthanandan, R Devanathan, S Thevuthasan, DE McCready, JS Young, G Balakrishnan, DM Paul, and WJ Weber. 2004. "Damage Accumulation and Amorphization in Samarium Titanate Pyrochlore." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 218:89-94. 
  • Zhang Y, V Shutthanandan, S Thevuthasan, DE McCready, JS Young, R Devanathan, JD Andreasen, G Balakrishnan, DM Paul, and WJ Weber. 2004. "Damage Evolution and Annealing of Au-Irradiated Samarium Titanate Pyrochlore." In Radiation Effects and Ion Beam Processing of Materials, Materials Research Society Symposium Proceedings, held December 1-5, 2003, Boston, Massachusetts, vol. 792, ed. LM Wang, R Fromknecht, LL Snead, DF Downey and H Takahashi, pp. 69-74, Paper No. R2.4.  Materials Research Society, Warrendale, PA. 
  • Zhang Y, WJ Weber, V Shutthanandan, R Devanathan, S Thevuthasan, G Balakrishnan, and DM Paul. 2004. "Damage Evolution on Sm and O Sublattices in Au-Implanted Samarium Titanate Pyrochlore." Journal of Applied Physics 95(5):2866-2872. 

2002

  • Devanathan R, WJ Weber, and LR Corrales. 2002. "Atomistic Simulation of Displacement Cascades in Zircon." In Scientific Basis for Nuclear Waste Management XXV, Materials Research Society Symposium Proceedings, vol. 713, ed. BP McGrail and GA Cragnolino, pp. 513-520, paper no. JJ11.36.  Materials Research Society, Warrendale, PA. 
  • Gao F, WJ Weber, and R Devanathan. 2002. "Defect Production, Multiple Ion-Solid Interactions and Amorphization in SiC." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 191(1-4):487-496. 
  • Weber WJ, F Gao, W Jiang, and R Devanathan. 2002. "Experimental and Computer Simulation Studies of Defects and Ion-Solid Interactions in Silicon Carbide." In Silicon Carbide and Related Materials 2001, Materials Science Forum, vol. 389-393, ed. S. Yoshida, S. Nishino, H. Harima, and T. Kimoto, pp. 875-878.  Trans Tech Publications Ltd., Uetikon-Zuerich, Switzerland. 
  • Weber WJ, W Jiang, F Gao, and R Devanathan. 2002. "Ion-Solid Interactions and Defects in Silicon Carbide." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 190(1-4):261-265. 

2001

  • Devanathan R, F Gao, and WJ Weber. 2001. "Computer Simulation Of Energy Dependence Of Primary Damage States In SiC." In Microstructural Processes in Irradiated Materials--Symposium, 27-29 Nov. 2000, Boston, MA, USA, Materials Research Society Symposium Proceedings, vol. 650, ed. GE Lucas, LL Snead, MA Kirk, RG Elliman, pp. R3.22(1-6).  Materials Research Society, Warrendale, PA. 
  • Devanathan R, WJ Weber, and F Gao. 2001. "Atomic Scale Simulation of Defect Production in Irradiated 3C-SiC." Journal of Applied Physics 90(5):2303-2309. 
  • Begg BD, NJ Hess, WJ Weber, R Devanathan, JP Icenhower, S Thevuthasan, and BP McGrail. 2001. "Heavy-Ion Irradiation Effects on Structures and Acid Dissolution of Pyrochlores." Journal of Nuclear Materials 288(2-3):208-216. 
  • Gao F, JR, R Devanathan, JR, and WJ Weber. 2001. "Si Displacement Cascades Revealed by Atomic-Scale Simulation in 3C-SiC." Fusion Technology 39(2):574-578. 
  • Gao F, WJ Weber, and R Devanathan. 2001. "Atomic-Scale Simulation of Displacement Cascades and Amorphization in Beta-SiC." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 180(1-4):176-186. 
  • Weber WJ, F Gao, W Jiang, and R Devanathan. 2001. "Experimental and Computational Studies of Radiation Effects in Silicon Carbide." In PRICM 4: Fourth Pacific Rim International Conference on Advanced Materials and Processing, vol. 1 & 2, ed. S. Hanada, Z. Zhong, S.W. Nam and R.N. Wright, pp. 1359-1362.  The Japan Institute of Metals, Sendai, , JAPAN. 

2000

  • Devanathan R, and WJ Weber. 2000. "Displacement Energy Surface in 3C and 6H SiC." Journal of Nuclear Materials 278(2-3):258-265. 
  • Begg BD, WJ Weber, R Devanathan, JP Icenhower, S Thevuthasan, and BP McGrail. 2000. "Heavy-Ion Irradiation Effects in Pyrochlores." In Environmental Issues and Waste Management Technologies in the Ceramic and Nuclear Industries V, Ceramic Transactions, vol. 107, ed. G.T. Chandler and X. Feng, pp. 553-560.  The American Ceramic Society, Westerville, OH. 
  • Weber WJ, LR Corrales, NJ Ness, RE Williford, HL Heinisch, S Thevuthasan, JP Icenhower, BP McGrail, R Devanathan, RM Van Ginhoven, J Song, B Park, W Jiang, BD Begg, RB Birtcher, X Chen, and SD Conradson. 2000. Radiation Effects in Nuclear Waste MaterialsPNNL-13345, Pacific Northwest National Laboratory, Richland, WA. 

1999

  • Devanathan R, WJ Weber, and T Diaz De La Rubia. 1999. "Atomistic Simulation of Defect Production in Beta-SiC." In Atomistic Mechanisms in Beam Synthesis and Irradiation of Materials; Materials Research Society Symposium Proceedings, vol. 504, ed. J.C. Barbour, S. Roorda, D. Ila, , pp. 45-50.  Materials Research Society, Warrendale, PA. 
  • Weber WJ, R Devanathan, A Meldrum, LA Boatner, RC Ewing, and LM Wang. 1999. "The Effect of Temperature and Damage Energy on Amorphization in Zircon." In Microstructural Processes in Irradiated Materials, Materials Research Society Symposium Proceedings, vol. 540, ed. S.J. Zinkle, G.E. Lucas, R.C. Ewing, J.S. Williams, pp. 367-372.  Materials Research Society, Warrendale, PA. 
  • Williford RE, WJ Weber, R Devanathan, and AN Cormack. 1999. "Native Vacancy Migrations in Zircon." Journal of Nuclear Materials 273:164-170. 
  • Williford RE, WJ Weber, R Devanathan, and JD Gale. 1999. "Oxygen Vacancy Migration in Disordered Gd2(ZrxTi1-x)2O7." In Multiscale Modeling of Materials; Materials Research Society Symposium Proceedings, vol. 538, ed. VT. D. de la Rubia, T. Kaxiras, V. Bulatov, et al, pp. 235-240.  Materials Research Society, Warrendale, PA. 
  • Williford RE, WJ Weber, R Devanathan, and JD Gale. 1999. "Effects of Cation Disorder on Oxygen Vacancy Migration in Gd2Ti2O7." Journal of Electroceramics 3(4):409-424. 

1998

  • Devanathan R, JN Mitchell, KE Sickafus, WJ Weber, and M Nastasi. 1998. "Radiation Response of FeTiO3 MgTiO3 and Alpha-Al2O3." Materials Science and Engineering. A. Structural Materials: Properties, Microstructure and Processing 253(1-2):131-134. 

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