Ram Devanathan

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

Biography

Ram Devanathan is a computational materials scientist and group leader in the Energy and Environment Directorate at PNNL. He leads a group of 45 scientists and engineers with expertise in materials characterization, multiscale modeling, machine learning, mechanical testing, and robotics to develop innovative solutions for the nation's pressing energy and environmental challenges. He is the chair of the Broader Impact Working Group of the Materials Research Society and treasurer of the Northwest Region Board of the American Chemical Society. Devanathan's research interests include the design of materials for extreme environments, multiscale modeling and machine learning for materials discovery, and selective water transport through membranes. He is a recipient of the U.S. Department of Energy's Outstanding Mentor Award for his efforts to involve high school, undergraduate, and graduate students in computational materials science, and the American Ceramic Society’s Richard M Fulrath Award. He is a fellow of the American Ceramic Society.

Research Interests

Materials development for service in extreme environments
Data management and machine learning applied to materials science
Selective water transport in membranes for desalination
Computer simulation of defects, radiation damage and diffusion in materials

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

2024

Roy A., A.R. Swope, R. Devanathan, and I. van Rooyen. 2024. "Chemical composition based machine learning model to predict defect formation in additive manufacturing." Materialia 33. PNNL-SA-189350. doi:10.1016/j.mtla.2024.102041

2023

Fullarton M.L., G. Nandipati, D.J. Senor, A.M. Casella, and R. Devanathan. 2023. "Molecular Dynamics Study of Primary Damage in the Near-Surface Region in Nickel." Journal of Nuclear Materials 583. PNNL-SA-180189. doi:10.1016/j.jnucmat.2023.154514
Kulkarni S.S., A. Venkatraman, D.J. Senor, and R. Devanathan. 2023. "A sensitivity analysis of twinning crystal plasticity finite element model using single crystal and poly crystal Zircaloy." Computational Materials Science 230. PNNL-SA-179404. doi:10.1016/j.commatsci.2023.112425
Roy A., A. Hussain, P. Sharma, G. Balasubramanian, M. Taufique, R. Devanathan, and P. Singh, et al. 2023. "Rapid discovery of high hardness multi-principal-element alloys using a generative adversarial network model." Acta Materialia 257. PNNL-SA-184145. doi:10.1016/j.actamat.2023.119177
Roy A., D.J. Senor, A.M. Casella, and R. Devanathan. 2023. "Molecular dynamics simulations of radiation response of LiAlO2 and LiAl5O8." Journal of Nuclear Materials 576. PNNL-SA-171974. doi:10.1016/j.jnucmat.2023.154280
Roy A., D.J. Senor, D.J. Edwards, A.M. Casella, and R. Devanathan. 2023. "Insights into radiation resistance of titanium alloys from displacement cascade simulations." Journal of Nuclear Materials 586. PNNL-SA-183956. doi:10.1016/j.jnucmat.2023.154695
Taufique M., M. Losada, S. Hamel, N. Goldman, M. DiTucci, L. Pagnotti, and D. Willis, et al. 2023. "Molecular Dynamics Simulation of Hygroscopic Aging Effects in Epoxy Polymer." Integrating Materials and Manufacturing Innovation 12, no. 3:185-195. PNNL-SA-161079. doi:10.1007/s40192-023-00296-5
Taufique M., M.C. Macduff, S. Bai, D.S. McAllester, M.G. Mamun, J. Wang, and M.R. Kieburtz, et al. 2023. Data Archive and Portal (DAP) Platform for Solid Phase Processing Technologies. PNNL-34266. Richland, WA: Pacific Northwest National Laboratory. Data Archive and Portal (DAP) Platform for Solid Phase Processing Technologies

2022

Kulkarni S.S., T.J. Truster, D.J. Senor, and R. Devanathan. 2022. "A crystal plasticity finite element method modeling of Zircaloy with hydride phases based on scanning electron micrographs." In ASME 17th International Manufacturing Science and Engineering Conference (MSEC 2022), June 27-July1, 2022, West Lafayette, IN, 2, MSEC2022-80224; V002T05A002. New York, New York:The American Society of Mechanical Engineers. PNNL-SA-168847. doi:10.1115/MSEC2022-80224
Mamun M.G., M. Taufique, M. Wenzlick, J.A. Hawk, and R. Devanathan. 2022. "Uncertainty Quantification for Bayesian Active Learning in Rupture Life Prediction of Ferritic Steels." Scientific Reports 12, no. 1:Art. No. 2083. PNNL-SA-166048. doi:10.1038/s41598-022-06051-8
Roy A., M. Taufique, H. Khakurel, R. Devanathan, D.D. Johnson, and G. Balasubramanian. 2022. "Machine-learning-guided descriptor selection for predicting corrosion resistance in multi-principal element alloys." npj Materials Degradation 6, no. 1:Art. No. 9. PNNL-SA-170502. doi:10.1038/s41529-021-00208-y
Roy A., M. Taufique, H. Khakurel, R. Devanathan, D.D. Johnson, and G. Balasubramanian. 2022. "Machine-learning-guided descriptor selection for predicting corrosion resistance in multi-principal element alloys." npj Materials Degradation 6, no. 1:Art. No. 9. PNNL-SA-159832. doi:10.1038/s41529-021-00208-y
Wenzlick M., O. Mamun, R. Devanathan, K.K. Rose, and J.A. Hawk. 2022. "Assessment of outliers in alloy datasets using unsupervised techniques." JOM. The Journal of the Minerals, Metals and Materials Society 74, no. 7:2846-2859. PNNL-SA-169146. doi:10.1007/s11837-022-05204-4

2021

Khakurel H., M. Taufique, A. Roy, G. Balasubramanian, G. Ouyang, J. Cui, and D.D. Johnson, et al. 2021. "Machine Learning Assisted Prediction of the Young's Modulus of Compositionally Complex Alloys." Scientific Reports 11, no. 1:17149. PNNL-SA-158789. doi:10.1038/s41598-021-96507-0
Kruska K., W. Jiang, X. Wang, L. Shao, B.J. Riley, and R. Devanathan. 2021. "Energy-Dispersive X-ray Spectroscopy and Atom-probe Tomography Data Quantifying Component-Ratios of Multicomponent Nano-Precipitates in Ion-Irradiated Ceria." Data in Brief 39. PNNL-SA-155990. doi:10.1016/j.dib.2021.107460
Kruska K., W. Jiang, X. Wang, L. Shao, B.J. Riley, and R. Devanathan. 2021. "Formation of multicomponent alloy particles in doped ceria under I2+ ion irradiation and thermal annealing." Journal of Nuclear Materials 545. PNNL-SA-150713. doi:10.1016/j.jnucmat.2020.152638
Kulkarni S.S., V. Gupta, D.J. Senor, T.J. Truster, A. Soulami, and R. Devanathan. 2021. "A microstructure-based modeling approach to predict the mechanical properties of Zr alloy with hydride precipitates." Computational Materials Science 197. PNNL-SA-160261. doi:10.1016/j.commatsci.2021.110654
Mamun M.G., M. Wenzlick, A. Visweswara Sathanur, J.A. Hawk, and R. Devanathan. 2021. "Machine Learning Augmented Predictive and Generative Model for Rupture Life in Ferritic and Austenitic Steels." npj Materials Degradation 5, no. 1:20. PNNL-SA-155793. doi:10.1038/s41529-021-00166-5
Mamun M.G., M. Wenzlick, J.A. Hawk, and R. Devanathan. 2021. "A Machine Learning Aided Interpretable Model for Rupture Strength Prediction in Fe-based Martensitic and Austenitic Alloys." Scientific Reports 11, no. 1:5466. PNNL-SA-156871. doi:10.1038/s41598-021-83694-z
Wenzlick M., M.G. Mamun, R. Devanathan, K.K. Rose, and J.A. Hawk. 2021. "Incorporating historical data and past analyses for improved tensile property prediction of 9% Cr steel." In 150th Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, (TMS 2021), March 15-18, 2021. Minerals, Metals and Materials Series, 5, 461 - 472. Cham:Springer. PNNL-SA-156299. doi:10.1007/978-3-030-65261-6_42

2020

Schwantes J.M., J. Bair, E.C. Buck, R. Devanathan, S.H. Kessler, T.G. Lach, and J.M. Lonergan, et al. 2020. "A new non-diffusional gas bubble production route in used nuclear fuel: Implications for fission gas release, cladding corrosion, and next generation fuel design." Physical Chemistry Chemical Physics 22, no. 11:6086-6099. PNNL-SA-144695. doi:10.1039/C9CP05363H
Wenzlick M.Z., J.R. Bauer, K.K. Rose, J.A. Hawk, and R. Devanathan. 2020. "Data Assessment Method to Support the Development of Creep-Resistant Alloys." Integrating Materials and Manufacturing Innovation 9, no. 1:89-102. PNNL-SA-148614. doi:10.1007/s40192-020-00167-3

2019

Deguire E., L. Bartolo, R. Brindle, R. Devanathan, E. Dickey, J. Fessler, and R.H. French, et al. 2019. "Data-driven glass/ceramic science research: Insights from the glass and ceramic and data science/informatics communities." Journal of the American Ceramic Society 102, no. 11:6385-6402. PNNL-SA-136773. doi:10.1111/jace.16677
Devanathan R., W. Jiang, K. Kruska, M.A. Conroy, T.C. Droubay, and J.M. Schwantes. 2019. "Hexagonal Close-Packed High-Entropy Alloy Formation under Extreme Processing Conditions." Journal of Materials Research 34, no. 5:709-719. PNNL-SA-137859. doi:10.1557/jmr.2018.438
Jiang W., M.A. Conroy, K. Kruska, M.J. Olszta, T.C. Droubay, J.M. Schwantes, and C.A. Taylor, et al. 2019. "In situ Study of Particle Precipitation in Metal-doped CeO2 during Thermal Treatment and Ion Irradiation for Emulation of Irradiating Fuels." Journal of Physical Chemistry C 123, no. 4:2591-2601. PNNL-SA-139442. doi:10.1021/acs.jpcc.8b11027
Setyawan W., D.J. Senor, and R. Devanathan. 2019. "Role of Interfaces in Damage Process of Irradiated Lithium Aluminate Nanocrystals." Journal of the American Ceramic Society 102, no. 4:1982-1993. PNNL-SA-131764. doi:10.1111/jace.16051
Shin Y., M.N. Taufique, R. Devanathan, E.C. Cutsforth, J. Lee, W. Liu, and L.S. Fifield, et al. 2019. "Highly Selective Supported Graphene Oxide Membranes for Water-Ethanol Separation." Scientific Reports 9, no. 1:Article No. 2251. PNNL-SA-130472. doi:10.1038/s41598-019-38485-y

2018

Devanathan R. 2018. "An Introduction to Graphene and Carbon Nanotubes [Book Review]." MRS Bulletin 43, no. 2:148-149. PNNL-SA-130325. doi:10.1557/mrs.2018.25
Devanathan R. 2018. "Review of 'Materials for the 21st century'." MRS Bulletin 43. PNNL-SA-136357. doi:10.1557/mrs.2018.286
Garrett K.E., A.M. Ritzmann, F.N. Smith, S.H. Kessler, R. Devanathan, N.J. Henson, and D.G. Abrecht. 2018. "First principles investigation of the structural and bonding properties of hydrated actinide (IV) oxalates, An(C2O4)2·6H2O (An = U, Pu)." Computational Materials Science 153. PNNL-SA-133111. doi:10.1016/j.commatsci.2018.06.033
Garrett K.E., D.G. Abrecht, S.H. Kessler, N.J. Henson, R. Devanathan, J.M. Schwantes, and D.D. Reilly. 2018. "Carbon diffusion in molten uranium: an ab initio molecular dynamics study." Modelling and Simulation in Materials Science and Engineering 26, no. 3:Article No. 035013. PNNL-SA-129429. doi:10.1088/1361-651X/aaad72
Tonks M., D. Andersson, R. Devanathan, R. Dubourg, A.A. El-Azab, M. Freyss, and F. Iglesias, et al. 2018. "Unit Mechanisms of Fission Gas Release: Current Understanding and Future Needs." Journal of Nuclear Materials 504. PNNL-SA-129199. doi:10.1016/j.jnucmat.2018.03.016

2017

Devanathan R. 2017. "Ion sieving and desalination: Energy penalty for excess baggage." Nature Nanotechnology 12. PNNL-SA-124040. doi:10.1038/nnano.2017.53
Devanathan R. 2017. "Molecular Dynamics Simulation of Fission Fragment Damage in Nuclear Fuel and Surrogate Material." MRS Advances 2, no. 21-22:1225-1230. PNNL-SA-123157. doi:10.1557/adv.2017.9
Devanathan R. 2017. "Review of "Computational Thermodynamics of Materials"." MRS Bulletin 42, no. 2:162-163. PNNL-SA-123080. doi:10.1557/mrs.2017.21
Devanathan R. 2017. "Review of Fundamentals of Condensed Matter Physics." MRS Bulletin 42, no. 6:470-471. PNNL-SA-125215. doi:10.1557/mrs.2017.134
Dong L., W. Setyawan, Y. Li, R. Devanathan, and F. Gao. 2017. "Molecular Dynamics Simulation of Low-energy Recoil Events in Titanate Pyrochlores." RSC Advances 7, no. 56:35403-35410. PNNL-SA-125690. doi:10.1039/c7ra04699e
Dong L., Y. Li, R. Devanathan, W. Setyawan, and F. Gao. 2017. "Low Energy Ion-Solid Interactions and Chemistry Effects in a Series of Pyrochlores." Journal of the American Ceramic Society 100, no. 7:3132-3144. PNNL-SA-123171. doi:10.1111/jace.14836
Jensen P.J., T. Tran, B.G. Fritz, F.C. Rutz, S.B. Ross, A.M. Gorton, and R. Devanathan, et al. 2017. "Preliminary Evaluation of the DUSTRAN Modeling Suite for Modeling Atmospheric Chloride Transport." Air Quality, Atmosphere and Health 10, no. 1:25-31. PNNL-SA-113805. doi:10.1007/s11869-016-0404-5
Jiang W., M.A. Conroy, K. Kruska, N.R. Overman, T.C. Droubay, J. Gigax, and L. Shao, et al. 2017. "Nanoparticle Precipitation in Irradiated and Annealed Ceria Doped with Metals for Emulation of Spent Fuels." Journal of Physical Chemistry C 121, no. 40:22465-22477. PNNL-SA-126918. doi:10.1021/acs.jpcc.7b06188
Jiang W., M.A. Conroy, R. Devanathan, C. Taylor, K. Hattar, J.G. Gigax, and L. Shao. 2017. "Precipitation of Epsilon Particles in Metal Doped Ceria Irradiated with Energetic Ions." In Transactions of the American Nuclear Society, June 11-15, 2017, San Francisco, CA, 116, 431-434. La Grange Park, Illinois:American Nuclear Society. PNNL-SA-125926.
Setyawan W., D.J. Senor, and R. Devanathan. 2017. "Insights on Amorphization of Lithium Aluminate from Atomistic Simulation." Journal of Physical Chemistry C 121, no. 14:7635-7642. PNNL-SA-122303. doi:10.1021/acs.jpcc.6b12562

2016

Devanathan R. 2016. "Herbert Frohlich: A Physicist Ahead of his Time [Book Review]." MRS Bulletin 41, no. 2:166. PNNL-SA-114043.
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, no. 5:412-413. PNNL-SA-116343. doi:10.1557/mrs.2016.107
Devanathan R. 2016. "Review of Nanomaterials in Extreme Environments." MRS Bulletin 41, no. 10:817-818. PNNL-SA-119224. doi:10.1557/mrs.2016.226
Devanathan R., D.G. Chase-Woods, Y. Shin, and D.W. Gotthold. 2016. "Molecular Dynamics Simulations Reveal that Water Diffusion between Graphene Oxide Layers is Slow." Scientific Reports 6. PNNL-SA-117768. 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, no. 47:41410-41419. PNNL-SA-116029. doi:10.1039/c6ra04779c
Shin Y., W. Liu, B. Schwenzer, S. Manandhar, D.G. Chase-Woods, M.H. Engelhard, and R. Devanathan, et al. 2016. "Graphene oxide membranes with high permeability and selectivity for dehumidification of air." Carbon 106. PNNL-SA-112915. doi:10.1016/j.carbon.2016.05.023

2015

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." In State of the Art Report on Multiscale Modeling of Nuclear Fuels, edited by S Massara. 246-276. Paris:OECD Publishing. PNNL-SA-104212.
Devanathan R. 2015. "Review of “Metals in Past Societies: A Global Perspective on Indigenous African Metallurgy” by Shadreck Chirikure, Springer, 2015." MRS Bulletin 40, no. 10:880. PNNL-SA-111840. doi:10.1557/mrs.2015.251
Devanathan R., M. Krack, and M. Bertolus. 2015. "Classical Molecular Dynamics Simulation of Nuclear Fuel." In State of the Art Report on Multiscale Modeling of Nuclear Fuels, edited by S Massara. 236-245. Paris:OECD Publishing. PNNL-SA-82914.
Kurata M., and R. Devanathan. 2015. "Free Energy and Heat Capacity." In State of the Art Report on Multiscale Modeling of Nuclear Fuels, edited by S Massara. 197-208. Paris:OECD Publishing. PNNL-SA-97898.
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, no. 1:39-48. PNNL-SA-105245. doi:10.1016/j.cossms.2014.10.002
Yablinsky C., R. Devanathan, J. Pakarinen, J. Gan, D. Severin, C. Trautmann, and T.R. Allen. 2015. "Characterization of swift heavy ion irradiation damage in ceria." Journal of Materials Research 30, no. 9:1473-1484. PNNL-SA-101304. doi:10.1557/jmr.2015.43

2014

Zarkadoula E., R. Devanathan, W.J. Weber, M. Seaton, I. Todorov, K. Nordlund, and M.T. Dove, et al. 2014. "High-energy radiation damage in zirconia: modeling results." Journal of Applied Physics 115, no. 8:083507. PNNL-SA-96637. doi:10.1063/1.4866989

2013

Devanathan R., F. Gao, and C.J. Sundgren. 2013. "Role of cation choice in the radiation tolerance of pyrochlores." RSC Advances 3, no. 9:2901-2909. PNNL-SA-91744. doi:10.1039/C2RA22745B
Devanathan R., N.B. Idupulapati, M.D. Baer, C.J. Mundy, and M. Dupuis. 2013. "Ab initio molecular dynamics simulation of proton hopping in a model polymer membrane." Journal of Physical Chemistry B 117, no. 51:16522-16529. PNNL-SA-98829. doi:10.1021/jp410229u
Guedes S., P. Moreira, R. Devanathan, W.J. Weber, and J.C. Hadler. 2013. "Improved zircon fission-track annealing model based on reevaluation of annealing data." Physics and Chemistry of Minerals 40, no. 2:93-106. PNNL-SA-92276. doi:10.1007/s00269-012-0550-8
Jiang W., R. Devanathan, C.J. Sundgren, M. Ishimaru, K. Sato, T. Varga, and S. Manandhar, et al. 2013. "Ion Tracks and Microstructures in Barium Titanate Irradiated with Swift Heavy Ions: A Combined Experimental and Computational Study." Acta Materialia 61, no. 20:7904-7916. PNNL-SA-93841. 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, no. 32:11281-11295. PNNL-SA-83377. doi:10.1039/C2CP24132C
Devanathan R., N.B. 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, no. 15:1927-1938. PNNL-SA-85255. doi:10.1557/jmr.2012.165
Du J., R. Devanathan, L.R. Corrales, and W.J. Weber. 2012. "First-principles calculations of the electronic structure, phase transition and properties of ZrSiO4 polymorphs." Computational and Theoretical Chemistry 987, no. 1:62-70. PNNL-SA-78940. doi:10.1016/j.comptc.2011.03.033
Gao F., H.Y. Xiao, Y. Zhou, R. Devanathan, S.Y. Hu, Y. Li, and X. Sun, et al. 2012. "Ab Initio Study of Defect Properties in YPO4." Computational Materials Science 54. PNNL-SA-83433. doi:10.1016/j.commatsci.2011.10.005
Kumar A., R. Devanathan, V. Shutthanandan, S.N. Kuchibhatla, A.S. Karakoti, Y. Yang, and S. Thevuthasan, et al. 2012. "Radiation-Induced Reduction of Ceria in Single and Polycrystalline Thin Films." Journal of Physical Chemistry C 116, no. 1:361-366. PNNL-SA-77391. doi:10.1021/jp209345w

2011

Costantini J., F. Beuneu, S.E. Morrison-Smith, R. Devanathan, and W.J. Weber. 2011. "Paramagnetic defects in electron-irradiated yttria-stabilized zirconia: Effect of yttria content." Journal of Applied Physics 110, no. 12:Article No. 123506. PNNL-SA-77664. doi:10.1063/1.3666062
Idupulapati N.B., 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, no. 12:2959-2969. PNNL-SA-76901.
Idupulapati N.B., R. Devanathan, and M. Dupuis. 2011. "Molecular Structure and Transport Dynamics in Perfluoro Sulfonyl Imide Membranes." Journal of Physics: Condensed Matter 23, no. 23:Article No. 234106. PNNL-SA-73759. doi:10.1088/0953-8984/23/23/234106
Lee C., R.K. Behera, S. Okamoto, R. Devanathan, E.D. Wachsman, S.R. Phillpot, and S.B. Sinnott. 2011. "Stabilization mechanisms of LaFeO3 (010) surfaces determined with first principles calculations." Journal of the American Ceramic Society 94, no. 6:1931-1939. PNNL-SA-70847. doi:10.1111/j.1551-2916.2010.04318.x
Lins R.D., 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, no. 8:1817-1824. PNNL-SA-76059. doi:10.1021/jp110331m
Moore E.E., L.R. Corrales, T. Desai, and R. Devanathan. 2011. "Molecular dynamics simulation of Xe bubble nucleation in nanocrystalline UO2 nuclear fuel." Journal of Nuclear Materials 419, no. 1-3:140-144. PNNL-SA-80118. doi:10.1016/j.jnucmat.2011.08.052
Sanghavi R.P., R. Devanathan, M.I. Nandasiri, S.N. 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. PNNL-SA-76714. doi:10.1016/j.ssi.2011.10.007

2010

Chang T., L.X. 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, no. 48:12764-12774. PNNL-SA-75089. doi:10.1021/jp108189z
Devanathan R. 2010. "Proton Exchange Membranes for Fuel Cells." In Energy Production and Storage - Inorganic Chemical Strategies for a Warming World, edited by RH Crabtree. 89-100. Hoboken, New Jersey:Wiley. PNNL-SA-68801.
Devanathan R., A. Venkatnathan, R.J. Rousseau, M. Dupuis, T. Frigato, W. Gu, and V.H. Helms. 2010. "Atomistic Simulation of Water Percolation and Proton Hopping in Nafion Fuel Cell Membrane." Journal of Physical Chemistry B 114, no. 43:13681-13690. PNNL-SA-71730. doi:10.1021/jp103398b
Devanathan R., and W.J. 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, no. 19:2857-2862. PNNL-SA-69785. doi:10.1016/j.nimb.2010.05.047
Devanathan R., L. Van Brutzel, A. Chartier, C. Gueneau, A.E. Mattsson, V. Tikare, and T. Bartel, et al. 2010. "Modeling and Simulation of Nuclear Fuel Materials." Energy & Environmental Science 3, no. 10:1406-1426. PNNL-SA-71998. doi:10.1039/C0EE00028K
Devanathan R., W.J. Weber, and J.D. Gale. 2010. "Radiation tolerance of ceramics-Insights from atomistic simulation of damage accumulation in pyrochlores." Energy & Environmental Science 3, no. 10:1551-1559. PNNL-SA-72579. doi:10.1039/C0EE00066C
Hu S.Y., Y. Li, X. Sun, F. Gao, R. Devanathan, C.H. Henager, and M.A. Khaleel. 2010. "Application of Phase-field Method in Predicting Gas Bubble Microstructure Evolution in Nuclear Fuels." International Journal of Materials Research 10, no. 4:515-522. PNNL-SA-69082.
Idupulapati N.B., R. Devanathan, and M. Dupuis. 2010. "Ab Initio Study of Hydration and Proton Dissociation in Ionomer Membranes." Journal of Physical Chemistry A 114, no. 25:6904-6912. PNNL-SA-71804.
Moreira P.A., R. Devanathan, and W.J. Weber. 2010. "Atomistic Simulation of Track Formation by Energetic Recoils in Zircon." Journal of Physics: Condensed Matter 22, no. 39:Art. No. 395008. PNNL-SA-73825. doi:10.1088/0953-8984/22/39/395008
Yu Z., R. Devanathan, W. Jiang, P. Nachimuthu, V. Shutthanandan, L.V. Saraf, and C.M. Wang, et al. 2010. "Integrated Experimental and Modeling Study of Ionic Conductivity of Scandia-Stabilized Zirconia Thin Films." Solid State Ionics 181, no. 8-10:367-371. PNNL-SA-68380. doi:10.1016/j.ssi.2010.01.024
Zhang J., M. Lang, R.C. Ewing, R. Devanathan, W.J. Weber, and M. Toulemonde. 2010. "Nanoscale Phase Transitions under Extreme Conditions within an Ion Track." Journal of Materials Research 25, no. 7:1344-1351. PNNL-SA-69791.

2009

Devanathan R. 2009. "Radiation damage evolution in ceramics." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 267, no. 18:3017-3021. PNNL-SA-63340. doi:10.1016/j.nimb.2009.06.020
Devanathan R., J. Yu, and W.J. Weber. 2009. "Energetic recoils in UO2 simulated using five different potentials." Journal of Chemical Physics 130, no. 17:Art. No. 174502. PNNL-SA-64852. doi:10.1063/1.3125967
Devanathan R., S. Thevuthasan, and J.D. Gale. 2009. "Defect Interactions and Ionic Transport in Scandia Stabilized Zirconia." Physical Chemistry Chemical Physics. PCCP 11, no. 26:5506-5511. PNNL-SA-64603.
Moreira P.A., R. Devanathan, J. Yu, and W.J. 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, no. 20:3431-3436. PNNL-SA-66421. doi:10.1016/j.nimb.2009.07.023
Yu J., R. Devanathan, and W.J. Weber. 2009. "First-principles study of defects and phase transition in UO2." Journal of Physics: Condensed Matter 21, no. 43:Art. No. 435401. PNNL-SA-64634. doi:10.1088/0953-8984/21/43/435401
Yu J., R. Devanathan, and W.J. Weber. 2009. "Unified Interatomic Potential for Zircon, Zirconia and Silica Systems." Journal of Materials Chemistry 19, no. 23:3923-3930. PNNL-SA-64569. doi:10.1039/b902767j

2008

Devanathan R. 2008. "Recent developments in proton exchange membranes for fuel cells." Energy & Environmental Science 1, no. 1:101-119. PNNL-SA-60497. doi:10.1039/b808149m
Devanathan R., and W.J. Weber. 2008. "Dynamic annealing of defects in irradiated zirconia-based ceramics." Journal of Materials Research 23, no. 3:593-597. PNNL-SA-55984. doi:10.1557/JMR.2008.0104
Gao F., L.W. Campbell, Y. Xie, R. Devanathan, A.J. Peurrung, and W.J. Weber. 2008. "Electron-Hole Pairs Created by Photons and Intrinsic Properties in Detector Materials." IEEE Transactions on Nuclear Science 55, no. 3:1079-1085. PNNL-SA-57212. doi:10.1109/TNS.2007.908917

2007

Campbell L.W., F. Gao, R. Devanathan, and W.J. 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, no. 1:454-457. PNNL-SA-52274. doi:10.1016/j.nima.2007.04.095
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, no. 45:13006-13013. PNNL-SA-56422. 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, no. 28:8069-8079. PNNL-SA-54612. doi:10.1021/jp0726992
Devanathan R., and W.J. Weber. 2007. "Radiation Effects in a Model Ceramic for Nuclear Waste Disposal." JOM. The Journal of the Minerals, Metals and Materials Society 59, no. 4:32-35. PNNL-SA-53726.
Devanathan R., F. Gao, and W.J. 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, no. 1:130-135. PNNL-SA-50795. doi:10.1016/j.nimb.2006.11.045
Devanathan R., P. Durham, J. Du, L.R. Corrales, and E.M. 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, no. 1:172-176. PNNL-SA-55042. doi:10.1016/j.nimb.2006.11.021
Gao F., L.W. Campbell, R. Devanathan, Y. Xie, L. Corrales, A.J. Peurrung, and W.J. 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, no. 1:292-296. PNNL-SA-50153. doi:10.1016/j.nima.2007.04.063
Gao F., L.W. Campbell, R. Devanathan, Y. Xie, Y. Zhang, A.J. Peurrung, and W.J. 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, no. 1:286-290. PNNL-SA-50972. doi:10.1016/j.nimb.2006.11.031
Gao F., Y. Zhang, R. Devanathan, M. Posselt, and W.J. 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, no. 1:136-140. PNNL-SA-50913. 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, no. 25:7234-7244. PNNL-SA-53307. doi:10.1021/jp0700276
Weber W.J., L.R. Corrales, R. Devanathan, F. Gao, and H.L. 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). Amsterdam:Elsevier. PNNL-SA-52635.
Zhang Y., F. Gao, R. Devanathan, and W.J. 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, no. 1:108-112. PNNL-SA-50187. doi:10.1016/j.nima.2007.04.019

2006

Corrales L.R., 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, no. 1-2:6-11. PNNL-SA-46662. doi:10.1016/j.nimb.2006.04.075
Devanathan R., L.R. Corrales, F. Gao, and W.J. 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, no. 2:637-649. PNNL-SA-49662. doi:10.1016/j.nima.2006.05.085
Devanathan R., L.R. Corrales, W.J. 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, no. 1-2:46-49. PNNL-SA-47036. doi:10.1016/j.nimb.2006.04.109
Devanathan R., L.R. Corrales, W.J. Weber, A. Chartier, and C. Meis. 2006. "Molecular Dynamics Simulation of Energetic Uranium Recoil Damage in Zircon." Molecular Simulation 32, no. 12-13:1069-1077. PNNL-SA-50764.
Devanathan R., W.J. Weber, S.C. Singhal, and J.D. Gale. 2006. "Computer Simulation of Defects and Oxygen Transport in Yttria-Stabilized Zirconia." Solid State Ionics 177, no. 15-16:1251-1258. PNNL-SA-49558. doi:10.1016/j.ssi.2006.06.030
Du J., R. Devanathan, L.R. Corrales, W.J. Weber, and A.n. Cormack. 2006. "Short- and medium-range structure of amorphous zircon from molecular dynamics simulations." Physical Review. B, Condensed Matter 74, no. 21:art. no.:214204, (14 pages). PNNL-SA-49119. doi:10.1103/PhysRevB.74.214204
Gao F., R. Devanathan, T. Oda, and W.J. 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, no. 1-2:50-53. PNNL-SA-46767. doi:10.1016/j.nimb.2006.04.082
Gao F., R. Devanathan, Y. Zhang, M. Posselt, and W.J. Weber. 2006. "Atomic-Level Simulation of Epitaxial Recrystallization and Phase Transformation in SiC." Journal of Materials Research 21, no. 6:1420-1426. PNNL-SA-46795. doi:10.1557/JMR.2006.0176

2005

Corrales L.R., 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, no. 1-4:274-281. PNNL-SA-42145.
Devanathan R., and W.J. 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, edited by CC Herman, S Marra, DR Spearing, L Vance, and JD Vienna, 176, 43-54. Westerville, Ohio:The American Ceramic Society. PNNL-SA-45177.
Devanathan R., and W.J. Weber. 2005. "Insights into the Radiation Response of Pyrochlores from Calculations of Threshold Displacement Events." Journal of Applied Physics 98, no. 8:086110. PNNL-SA-45842.
Devanathan R., F. Gao, and W.J. 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, edited by M. Chipara, D. L. Edwards, S. Phillips, and R. Benson, 851, 317-322. Warrendale, Pennsylvania:Materials Research Society. PNNL-SA-43546.
Devanathan R., L.R. Corrales, W.J. 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, no. 1-4:299-303. PNNL-SA-42091.
Gao F., R. Devanathan, Y. Zhang, and W.J. 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, no. 1-4:282-287. PNNL-SA-42095.
Thomas B.S., N.A. Marks, L.R. 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, no. 3:191-201. PNNL-SA-43979.
Weber W.J., F. Gao, R. Devanathan, W. Jiang, and Y. Zhang. 2005. "Defects and Ion-Solid Interactions in Silicon Carbide." Materials Science Forum 475-479, no. 1-5:1345-1350. PNNL-SA-41633.

2004

Devanathan R., F. Gao, and W.J. Weber. 2004. "Amorphization of Silicon Carbide by Carbon Displacement." Applied Physics Letters 84, no. 19:3909-3911. PNNL-SA-40108.
Devanathan R., F. Gao, and W.J. 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, edited by LM Wang, R Fromknecht, LL Snead, DF Downey and H Takahashi, 792, 479-484, Paper No. R4.1. Warrendale, Pennsylvania:Materials Research Society. PNNL-SA-40161.
Devanathan R., L.R. Corrales, W.J. Weber, A. Chartier, and C. Meis. 2004. "Molecular Dynamics Simulation of Disordered Zircon." Physical Review. B, Condensed Matter and Materials Physics 69, no. 6:064115, 1-9. PNNL-SA-39522.
Weber W.J., 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. PNNL-SA-39500.
Weber W.J., F. Gao, R. Devanathan, W. Jiang, and C.M. 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. PNNL-SA-38842.
Weber W.J., 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, edited by LM Wang, R Fromknecht, LL Snead, DF Downey and H Takahashi, 792, 261-271, Paper No. R5.1. Warrendale, Pennsylvania:Materials Research Society. PNNL-SA-40162.
Zhang Y., V. Shutthanandan, R. Devanathan, S. Thevuthasan, D.E. McCready, J.S. Young, and G. Balakrishnan, et al. 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. PNNL-SA-39437. doi:10.1016/j.nimb.2003.12.003
Zhang Y., V. Shutthanandan, S. Thevuthasan, D.E. McCready, J.S. Young, R. Devanathan, and J.D. Andreasen, et al. 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, edited by LM Wang, R Fromknecht, LL Snead, DF Downey and H Takahashi, 792, 69-74, Paper No. R2.4. Warrendale, Pennsylvania:Materials Research Society. PNNL-SA-40141.
Zhang Y., W.J. Weber, V. Shutthanandan, R. Devanathan, S. Thevuthasan, G. Balakrishnan, and D.M. Paul. 2004. "Damage Evolution on Sm and O Sublattices in Au-Implanted Samarium Titanate Pyrochlore." Journal of Applied Physics 95, no. 5:2866-2872. PNNL-SA-39190.

2002

Devanathan R., W.J. Weber, and L.R. Corrales. 2002. "Atomistic Simulation of Displacement Cascades in Zircon." In Scientific Basis for Nuclear Waste Management XXV, Materials Research Society Symposium Proceedings, edited by BP McGrail and GA Cragnolino, 713, 513-520, paper no. JJ11.36. Warrendale, Pennsylvania:Materials Research Society. PNNL-SA-35574.
Gao F., W.J. 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, no. 1-4:487-496. PNNL-SA-35150.
Weber W.J., 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, edited by S. Yoshida, S. Nishino, H. Harima, and T. Kimoto, 389-393, 875-878. Uetikon-Zuerich:Trans Tech Publications Ltd. PNNL-SA-35343.
Weber W.J., 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, no. 1-4:261-265. PNNL-SA-35012.

2001

Begg B.D., N.J. Hess, W.J. Weber, R. Devanathan, J.P. Icenhower, S. Thevuthasan, and B.P. McGrail. 2001. "Heavy-Ion Irradiation Effects on Structures and Acid Dissolution of Pyrochlores." Journal of Nuclear Materials 288, no. 2-3:208-216. PNNL-SA-32958.
Devanathan R., F. Gao, and W.J. 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, edited by GE Lucas, LL Snead, MA Kirk, RG Elliman, 650, R3.22(1-6). Warrendale, Pennsylvania:Materials Research Society. PNNL-SA-34011.
Devanathan R., W.J. Weber, and F. Gao. 2001. "Atomic Scale Simulation of Defect Production in Irradiated 3C-SiC." Journal of Applied Physics 90, no. 5:2303-2309. PNNL-SA-34404.
Gao F., R. Devanathan, and W.J. Weber. 2001. "Si Displacement Cascades Revealed by Atomic-Scale Simulation in 3C-SiC." Fusion Technology 39, no. 2:574-578. PNNL-SA-33765.
Gao F., W.J. 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, no. 1-4:176-186. PNNL-SA-33419.
Weber W.J., 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, edited by S. Hanada, Z. Zhong, S.W. Nam and R.N. Wright, 1 & 2, 1359-1362. Sendai, :The Japan Institute of Metals. PNNL-SA-34986.

2000

Begg B.D., W.J. Weber, R. Devanathan, J.P. Icenhower, S. Thevuthasan, and B.P. McGrail. 2000. "Heavy-Ion Irradiation Effects in Pyrochlores." In Environmental Issues and Waste Management Technologies in the Ceramic and Nuclear Industries V, Ceramic Transactions, edited by G.T. Chandler and X. Feng, 107, 553-560. Westerville, Ohio:The American Ceramic Society. PNNL-SA-31013.
Devanathan R., and W.J. Weber. 2000. "Displacement Energy Surface in 3C and 6H SiC." Journal of Nuclear Materials 278, no. 2-3:258-265. PNNL-SA-31546.
Weber W.J., L. Corrales, N.J. Ness, R.E. Williford, H.L. Heinisch, S. Thevuthasan, and J.P. Icenhower, et al. 2000. Radiation Effects in Nuclear Waste Materials. PNNL-13345. Richland, WA: Pacific Northwest National Laboratory. Radiation Effects in Nuclear Waste Materials

1999

Devanathan R., W.J. 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, edited by J.C. Barbour, S. Roorda, D. Ila,, 504, 45-50. Warrendale, Pennsylvania:Materials Research Society. PNNL-SA-29650.
Weber W.J., R. Devanathan, A. Meldrum, L.A. Boatner, R.C. Ewing, and L.M. Wang. 1999. "The Effect of Temperature and Damage Energy on Amorphization in Zircon." In Microstructural Processes in Irradiated Materials, Materials Research Society Symposium Proceedings, edited by S.J. Zinkle, G.E. Lucas, R.C. Ewing, J.S. Williams, 540, 367-372. Warrendale, Pennsylvania:Materials Research Society. PNNL-SA-30636.
Williford R.E., W.J. Weber, R. Devanathan, and A.N. Cormack. 1999. "Native Vacancy Migrations in Zircon." Journal of Nuclear Materials 273. PNNL-SA-30500.
Williford R.E., W.J. Weber, R. Devanathan, and J.D. Gale. 1999. "Effects of Cation Disorder on Oxygen Vacancy Migration in Gd2Ti2O7." Journal of Electroceramics 3, no. 4:409-424. PNNL-SA-30516.
Williford R.E., W.J. Weber, R. Devanathan, and J.D. Gale. 1999. "Oxygen Vacancy Migration in Disordered Gd2(ZrxTi1-x)2O7." In Multiscale Modeling of Materials; Materials Research Society Symposium Proceedings, edited by VT. D. de la Rubia, T. Kaxiras, V. Bulatov, et al, 538, 235-240. Warrendale, Pennsylvania:Materials Research Society. PNNL-SA-30597.

1998

Devanathan R., J.N. Mitchell, K.E. Sickafus, W.J. 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, no. 1-2:131-134. PNNL-SA-29710.
Devanathan R., K.E. Sickafus, K.E. Sickafus, W.J. Weber, M. Nastasi, and M. Nastasi. 1998. "Effects of Ionizing Radiation in Ceramics." Journal of Nuclear Materials 253, no. 1-3:113-119. PNNL-SA-20404. doi:10.1016/S0022-3115(97)00307-3
Devanathan R., T. Diaz De La Rubia, and W.J. Weber. 1998. "Displacement Threshold Energies in ß-SiC." Journal of Nuclear Materials 253, no. 1-3:47-52. PNNL-SA-29406. doi:10.1016/S0022-3115(97)00304-8
Devanathan R., W.J. Weber, and T. Diaz De La Rubia. 1998. "Computer Simulation of a 10 keV Si Displacement Cascade in SiC." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 141, no. 1-4:118-122. PNNL-SA-29405. doi:10.1016/S0168-583X(98)00084-6
Devanathan R., W.J. Weber, K.E. Sickafus, K.E. Sickafus, M. Nastasi, M. Nastasi, and L.M. Wang, et al. 1998. "Cryogenic Radiation Response of Sapphire." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 141, no. 1-4:366-371. PNNL-SA-29463. doi:10.1016/S0168-583X(98)00190-6
Williford R.E., R. Devanathan, and W.J. Weber. 1998. "Computer Simulation of Displacement Energies for Several Ceramic Materials." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 141, no. 1-4:94-98. PNNL-SA-29381. doi:10.1016/S0168-583X(98)00066-4