Engineering Nuclear

Dr. Thomas Hartmann

Associate Professor, Department of Mechanical Engineering University of Nevada, Las Vegas

**** ******** *******

Las Vegas, NV 89154-4008

Telephone: 702-***-****

Mobile: 208-***-****

Fax: 702-***-****

E-mail: ******.********@****.***

E-mail: *****************@*****.***

Professional Preparation

Institution

Major/Area

Degree & Year

University Heidelberg, Germany

Mineralogy-Crystallography

B.S., 1988

University Heidelberg, Germany

Mineralogy-Crystallography

M.S., 1991

University Heidelberg, and Karlsruhe Institute of Technology, Germany

Mineralogy: Rh-Pd-Te System in Vitrification of HLW

Ph.D., 1995

Karlsruhe Institute of Technology, Germany

Siemens/KWU Waste Incineration System (Siemens Schwel-Brenn)

Post-Doctoral Fellow, 1996

Los Alamos National Laboratory, USA

Radiation Damage on Ceramic Actinide Host Phases

Post-Doctoral Fellow, 1997-1999

Research and Professional Experience

01 Nov 2017 to present

01 March 2016 to 31 Oct 2017

01 Jul 2013 to 29 Feb 2016

Associate Professor at University Nevada, Las Vegas in the Howard R. Hughes College of Engineering, Department of Mechanical Engineering. Director of the Transmission Electron Microscope (TEM) User Facility. Joint Appointee with Idaho National Laboratory (INL).

Development of undergraduate and graduate courses on materials sciences and mechanical engineering: Physical Metallurgy, Materials Science in the Nuclear Fuel Cycle, and X-ray diffraction and electron microscopy.

Development of novel synthesis routes to fabricate advanced ceramic waste forms to immobilize technetium.

Analysis & characterization of advanced nuclear fuels for the DOE-RERTR program.

Grant writing for undergraduate/graduate research and for maintaining the analytical infrastructure for materials characterization.

Reviewer for DOE-NEUP, JACERS, and the Journal of Nuclear Materials

Serving in diverse committees and mentoring students

Acting Director of the Radiochemistry Program, Associate Professor at University Nevada, Las Vegas in the Howard R. Hughes College of Engineering, Department of Mechanical Engineering. Affiliated staff scientist in a joint appointment with the Idaho National Laboratory (INL). In this capacity responsible for maintaining a research-intense academic program purely funded through grants & contracts at UNLV.

Programmatic leadership of an academic program addressing all aspects of the nuclear fuel cycle, nuclear forensic, and environmental management.

Development of advanced ceramic waste forms to immobilize fission technetium.

Grant writing for graduate research and for maintaining the analytical infrastructure.

Development of undergraduate and graduate course work on fundamental aspects of fuel fabrication, solid phase analysis, and the development of nuclear waste forms.

Maintenance of analytical instrumentations for solid phase analysis (TEM, XRD)

Analysis & characterization of advanced metallic nuclear fuels.

Reviewer DOE-NEUP, JACERS, and the Journal of Nuclear Materials

Serving in committees and mentoring students

Associate Professor at University Nevada, Las Vegas in the Howard R. Hughes College of Engineering, Department of Mechanical Engineering. Director of the Transmission Electron Microscope (TEM) User Facility. Research on corrosion on ceramic waste-forms and metallic nuclear fuel characterization. Affiliated staff scientist in a joint appointment with the Idaho National Laboratory (INL) on PIE (Post Irradiation Examination).

Development of undergraduate and graduate course work

Research on the development and characterization of advanced ceramic waste forms to immobilize technetium.

Research on the characterization of advanced metallic plate fuels.

Quantitative phase analysis of metallic fast reactor fuels.

Maintenance of analytical instrumentations for solid phase analysis (TEM, XRD).

01 Jul 2008 to 30 June 2013

Associate Research Professor at the Harry Reid Center (HRC) at UNLV and Joint Appointee with Idaho National Laboratory (INL). Research on the development and properties of ceramic waste-forms to immobilize fission products such as technetium-99, and PIE on advanced metallic fast reactor fuel developing micro-focus XRD capabilities for INL.

Fabrication of oxide fuels with high simulated burn-ups in collaboration with LLNL and support of the LIFE (Laser Inertial Fusion Energy) project.

Subject matter expert for the INL for the quantitative analysis of U-Pu-Zr fuel phases of as-cast and annealed metallic fast reactor fuels.

01 Nov 2006 to 30 June 2008

Research Associate Professor at Idaho State University (ISU) and Joint Appointee with INL.

Ceramic fuel processing through Spark Plasma Sintering.

Implementing capabilities for Post Irradiation Examination of metallic nuclear fast reactor fuel at the Materials & Fuels Complex at the INL.

01 Oct 2004 to 31 Oct 2006

Research Scientist, UNLV-HRC. Director of structure and solid phase analysis.

Synthesis and characterization of advanced ceramic nuclear burner fuels for ADS (Accelerator-driven Systems) applications.

01 Mar 2003 to 30 Sep 2004

Senior Scientist, Werkstoff-Zentrum Rheinbach, Germany.

Properties and thermal shock resistance of ceramic heat shields for energy applications.

01 Mar 1999 to 10 Jan 2003

Staff Member at Los Alamos National Laboratory (LANL). Principal investigator for in-situ vitrification (NTISV) and its deployment on Pu-contaminated sites Integrated Repository Sciences. Impact of radiolysis on the corrosion of waste packages and actinide speciation in support of the performance assessment for the DOE WIPP salt repository. Review of WIPP compliance documents.

Characterization of vitreous specimens form a contaminated site at LANL

Relocation to Carlsbad NM in support of the LANL WIPP team

Establishing an extensive research program on integrated repository science in collaboration with SNL with an annual budget of $ 3,000,000.

Accelerator-based experiments to determine speciation of actinides under the effect of radiolysis in the repository near field of WIPP.

Publications

Chapter Book

1.P. Paviet-Hartmann, T. Hartmann, Chapter: Integrated repository science for the long-term prediction of nuclear waste disposal, Nuclear Energy and the Environment, Eds. Chien Wai and Bruce Mincher, ACS Symposium Series 1046, DEC 2010.

Journal Articles, Proceedings & Reports

2.T. Hartmann, Annita Martinelli Becker: Challenges in the Fabrication of Ceramic Technetium Waste Forms, accepted for publication at MRS Advances, MRS Spring Meeting, Phoenix, AZ, April 2-6, (2018).

3.T. Hartmann: Thermodynamic and Microstructural Mechanisms in the Corrosion of Advanced Ceramic Technetium-bearing Waste Forms and Thermophysical Properties, DOE Milestone Report M2NU-12-NV-UNLV-0202-068 (2017), 84 pages.

4.T. Hartmann, D. Koury, and D. Keiser: X-Ray Diffraction-based Phase Tomography and Depth Profiling in RERTR-12 Fuel Plates, Submitted to Journal of Nuclear Materials (2017).

5.T. Hartmann, D. Koury, and D. Keiser: X-Ray Diffraction-based Phase Tomography and Depth Profiling in RERTR-12 Fuel Plates, Submitted to Idaho National Laboratory to be published as External-LDT Report (2017), 31 pages.

6.T. Hartmann, R. Palaparty, F. Wolke: Fabrication and Properties of Advanced Ceramic Waste Forms, Waste Management Symposia 2017, Proceedings, 17311, March 5-9, Phoenix, AZ (2017).

7.T. Hartmann, S. Molina, D. Koury, D. D. Keiser: Selective oxidation of -uranium during isothermal annealing of RERTR fuel foils, submitted to Journal of Nuclear Materials, (2016).

8.S. M. Balasekaran, T. K. Todorova, P. C. Thang, T. Hartmann, U. Abram, A. P. Sattelberger, F. Poineau: Octaflouridodirhenate(III) revisited: Solid-state preparation and quantum chemical calculations. Inorganic Chemistry, 55(11), (2016).

9.K. Campbell, A. Unger, W. Kerlin, T. Hartmann, E. Judge. J. Bertoia, M. Dirmyer, K. Czerwinski: Limiting Spectroscopic Interference of 239Pu and 237Np in a 238UO2 Matrix using LA-ICP-MS, Journal of Radioanalytical and Nuclear Chemistry, 310, 533-540, (2016).

10.D. B. Ji, Y. D. Yan, M. L. Zhang, X., P. Wang, X. Yang, X.Y. Jing, Y, Xue, Z. J. Zhang, T. Hartmann: Study on Electrochemical Behavior of La(III) and Preparation of Al La Intermetallic Compound Whiskers in Chloride Melt. Journal of the Electrochemical Society, 163(2), D1-D8, (2015).

11.M. Sendova, B. D. Hosterman, R. Raud, T. Hartmann, D. Koury: Temperature-dependent, micro-Raman Spectroscopic Study of Barium Titanate Nanoparticles. Journal of Raman Spectroscopy, 46(1), 25-31, (2015).

12.D. B. Ji, Y. D. Yan, M. L. Zhang, X. Li, X. Yang, X. Y. Jing, Y, Xue, W. Han, T. Hartmann: Study on formation and properties of Al-Li-Sm alloy containing whiskers in molten salts. Royal Society of Chemistry Advances, 5, 75863, (2015).

13.T. Hartmann, I.J. Alaniz-Ortez: Fabrication and Chemical Durability of Ceramic Technetium-Based Pyrochlores and Perovskites as Potential Waste Forms. Advances in Science and Technology, Vol. 94, pp. 85-92, (2014).

14.T. Hartmann, I.J. Alaniz-Ortez: Fabrication and Chemical Durability of Ceramic Technetium-Based Pyrochlores and Perovskites as Potential Waste Forms. Proceedings CIMTEC 2014, 6th Forum on New Materials, June 15-19, Montecatini Terme, Italy, (2014).

15.N. Bandau, R. Kumar, J. Baker, O. Tschauner, T. Hartmann, Y. Zhao: el . International Journal of Modern Physiks B, 28, 1450168, (2014)

16.N. Bandau, R. Kumar, D. Sneed, O. Tschauner, J. Baker, D. Antonio, S.-N. Luo, T. Hartmann, Y. Zhao, R. Venkat: Effect of Pressure and Temperature on Structural Stability of MoS2. Journal of Physical Chemistry, accepted for publication, (2014)

17.M. A. El Qader, R. Venkat, R. Kumar; T. Hartmann; P. Ginobbi, N. Newman, R. Singh: Structural, Electrical, and Thermoelectric Properties of CrSi2 Thin Films. Thin Solid Films, 545, 100-105, (2013).

18.E. Mausolf, E. V. Johnstone, F. Poineau, S. Nguyen, S. Jones, T. Hartmann, E. Buck, K. R. Czerwinski: Formation of Tc metal in 12 M HCl using Zn as a reductant. J. Radioanal Nucl Chem, 298, 2, pp. 1315-1321, (2013).

19.E. V. Johnstone, F. Poineau, J. Starkey, T. Hartmann, P. M. Forster, L. Ma, J. Hilgar, E. E. Rodriguez, R. Farmand, K. R. Czerwinski, A. P. Sattelberger: Synthesis and Coordination Chemistry of the Heavier Trivalent Technetium Binary Halides: Uncovering Technetium Triiodide. Inorganic Chemistry, 52(24), pp. 143**-*****, (2013).

20.T. Hartmann, A.J. Alaniz, D.J. Antonio: Fabrication and Properties of Technetium-Bearing Pyrochlores and Perovskites as Potential Waste Forms, Waste Management Symposia 2013, Proceedings, 13222, (2013).

21.A.J. Alaniz, L. Delgado, B. Werbick, T. Hartmann: Prototype Development of a Remote Operated Hot Uniaxial Press (ROHUP) to Fabricate Advanced Tc-99 Bearing Ceramic Waste Forms, Waste Management Symposia 2013, Proceedings, 13381, (2013).

22.G.W. Egeland, R.D. Mariani, T. Hartmann, D.L. Porter, S.L. Hayes, J.R. Kennedy: Reduction of FCCI effects in lanthanide-ion diffusion couples by doping with palladium. Materials, 440 (1-3), 178-192, (2013).

23.G.W. Egeland, R.D. Mariani, T. Hartmann, D.L. Porter, S.L. Hayes, J.R. Kennedy: Reducing fuel-cladding chemical interaction: The effect of palladium on the reactivity of neodymium on iron in diffusion couples. Materials, 432, 539-544, (2013).

24.T. Hartmann, A.J. Alaniz, D.J. Antonio: Fabrication and properties of technetium-bearing pyrochlores and perovskites as potential waste forms. Procedia Chemistry 7, pp. 622-628 (2012).

25.T. Hartmann, A.J. Alaniz, D. J. Antonio: Fabrication and properties of technetium-bearing pyrochlores and perovskites as potential waste form. Atalante 2012: Nuclear Fuel Cycle for a Sustainable Fuel Cycles, Montpellier, France, 2-7 September, Proceedings, A210 (2012).

26.A.J. Alaniz, L. Delgado, B. Werbick, T. Hartmann: Remote operated hot uniaxial press to fabricate Tc-99 bearing waste forms. Atalante 2012: Nuclear Fuel Cycle for a Sustainable Fuel Cycles, Montpellier, France, 2-7 September, Proceedings, A168 (2012).

27.Y.H. Li, B.P. Uberuaga, C. Jiang, S. Choudhury, J.A. Valdez, M.K. Patel, J. Won, Y.-Q. Wang, M. Tang, D.J. Safarik, D.D. Byler, K.J. McClellan, I.O. Usov, T. Hartmann, G. Baldinozzi, K.E. Sickafus: The role of antisite disorder on irradiation-induced swelling in titanate pyrochlores. Physical Review Letters, 108, 195504, (2012).

28.E. Mausolf, J. Droessler, F. Poineau, T. Hartmann, K. Czerwinski: Tetraphenylpyridinium pertechnetate: a promising salt for the immobilization of technetium. Radiochim. Acta 100, 5, pp. 325-328, (2012).

29.E. Mausolf, J. Droessler, F. Poineau, T. Hartmann, K. Czerwinski: Tetraphenylpyridinium pertechnetate: a promising salt for the immobilization of technetium. Journal of the Indian Chemical Society, 89, 4, pp. 325-328, (2012).

30.E. V. Johnstone, F. Poineau, P. M. Forster, L. Ma, T. Hartmann, A. Cornelius, A. Daniel, A. P. Sattelberger, K. R. Czerwinski,: Technetium Tetrachloride Revisited: A Precursor to Lower-Valent Binary Technetium Chlorides, Inorganic Chemistry, 51(15), pp. 8462-8467, (2012).

31.K. R. Rogers, K. Bradham, T. Tolaymat, D. J. Thomas, T. Hartmann, L. Ma, A. Williams: Alterations in physical state of silver nanoparticles exposed to synthetic human stomach fluid. Science of the Total Environment 420, 334-339, (2012).

32.T. Hartmann, H. Pentinghaus: The ternary system palladium-rhodium-tellur: A study to understand phase formation in the vitrification process of high-level waste concentrates (HLWC). Journal of Nuclear Materials, 422, 124-130, (2012).

33.K. Holliday, T. Hartmann, G. Cerefice, K. Czerwinski: Dissolution behavior of plutonium containing zirconia-magnesia ceramics. Journal of Nuclear Materials, 422, 109-115, (2012).

34.K. Holliday, T. Hartmann, G. Cerefice, K. Czerwinski: Environmental behavior of ZrO2-MgO ceramics containing UO2. Radiochim Acta 99, 799-806, (2011).

35.K. Holliday, N.A. Smith, T. Hartmann, G.S. Cerefice, K. Czerwinski: Acidic dissolution behavior of U containing ZrO 2–MgO ceramics. Annals of Nuclear Energy, (2011).

36.K. E Wright, T. Hartmann, Y. Fujita: Inducing mineral precipitation in groundwater by addition of phosphate, Geochemical Transactions, 12, 8, 1467, (2011).

37.E. Mausolf, F. Poineau, T. Hartmann, J. Droessler, K. Czerwinski: Characterization of Electrodeposited Technetium on Gold Foil. J. Electrochem. Soc., 158, Issue 3, E32-E35, (2011).

38.T. Hartmann: Evaluation of Phase- and Element Distribution After Non-Traditional In Situ Vitrification (NTISV) at Los Alamos National Laboratory on a Simulated Adsorption Bed, MRS Online Proceeding Library (2011)

39.T. Hartmann, A. Alaniz, F. Poineau, P. F. Weck, J. A. Valdez, M. Tang, G. D. Jarvinen, K. R. Czerwinski and K. E. Sickafus: Structure Studies on Lanthanide Technetium Pyrochlores as Prospective Host Phases to Immobilize 99Tc and Fission Lanthanides from Effluents of Reprocessed Used Nuclear Fuels. Journal of Nuclear Materials, 411, 60-71, (2011).

40.P.E. Kalita, S.V. Stanislav, K. Lipinska-Kalita, T. Hartmann, X. Ke, C. Chen, A. Cornelius: Equation of State of TiH2 up to 900 GPa: a synchrotron x-ray diffraction study and up initio calculations. Journal of Applied Physics, 108, 043511, (2010).

41.D.E. Burkes. C.A. Papesch, A.P. Maddison, T. Hartmann, F.J. Rice: Thermo-physical properties of DU-10 wt.% Mo alloys. Journal of Nuclear Materials, 403, 160-166, (2010).

42.D.E. Burkes, R. Prabhakaran, T. Hartmann, J.-F. Jue, F.J. Rice: Properties of DU-10 wt.-% Mo alloys subjected to various post rolling heat treatment. Nuclear Engineering and Design (240), 1332-1339, (2010).

43.D.E. Burkes, J.R. Kennedy, T. Hartmann, C.A. Papesch, D.D. Keiser Jr.: Phase characterization of a number of U-Pu-Am-Np-Zr metal alloys for use as fast reactor fuels. Journal of Nuclear Materials, 396(1), 49-56, (2010).

44.P. Paviet-Hartmann, T. Hartmann: Integrated repository science for the long-term prediction of nuclear waste disposal. ACS Symposium Series 1046: Nuclear Energy and the Environment, Chapter 27, pp. 381-404, Ed. Chien Wai, Publisher American Chemical Society Book, (2010).

45.K. Holliday, T. Hartmann, S. R. Mulcahy, K. Czerwinski: Synthesis and characterization of zirconia-magnesia inert matrix fuel: Plutonium studies. Journal of Nuclear Materials, 402, 81-86, (2010).

46.F. Poineau, T. Hartmann, P.F. Weck, E. Kim, G.W.C. Silva, G.D. Jarvinen, K.R. Czerwinski: Structural studies of technetium-zirconium alloys by X-ray diffraction, high-resolution electron microscopy, and first-principles calculations. Inorg. Chem. 49, 1433-1438, (2010).

47.R.I. Sheldon, T. Hartmann, K.E. Sickafus, A Ibarra, R.B. Von Dreele: Cation Disorder and Vacancy Distribution in Nonstoichiometric Magnesium Aluminate Spinel, MgO xAl2O3, ChemInform Abstract, (2010).

48. D.B. Rego, T. Hartmann, S.D. Conradson, S.R. Mulcahy, K.R. Czerwinski: Metallic sodium assisted syntheses of actinide nitrides, Plutonium Futures - the Science (2010), 157.

49.G.W.C. Silva, C.B. Yeamans, A.P. Sattelberger, T. Hartmann, G.S. Cerefice, K.R. Czerwinski: Reaction Sequence and Kinetics of Uranium Nitride Decomposition. Inorganic Chemistry 48(22), 106**-*****, (2009).

50.T. Hartmann, P. Paviet-Hartmann: Green solvent supercritical carbon dioxide to improve nuclear cemented waste-forms. Abstract of Papers, 238th ACS National Meeting, Washington DC, August 16-20th, NUCL-061, (2009).

51.P. Paviet Hartmann, T. Hartmann: Integrated repository science for the long-term prediction of nuclear waste disposal. Abstract of Papers, 238th ACS National Meeting, Washington DC, August 16-20th, NUCL-057, (2009).

52.K. Holliday, T. Hartmann, K.R. Czerwinski: Synthesis and characterization of zirconia-magnesia inert matrix fuel: Cerium homolog studies. Journal of Nuclear Materials (2009), 392(3), 487-493.

53.D.E. Burkes, T. Hartmann, R. Prabhakaran, J.-F. Jue: Microstructural characterization of DU-xMo alloys with x=7-12 wt%. Journal of Alloys and Compounds, 479 (2009), 140-147.

54.K. Holliday, T. Hartmann, F. Poineau, J.R. Kennedy, K.R. Czerwinski: Synthesis and characterization of zirconia-magnesia inert matrix fuel: Uranium homolog studies. Journal of Nuclear Materials (2009), 393(2), 224-229.

55.D. E. Burkes, J. R. Kennedy, T. Hartmann, L. N. Squires: Phase Characterization of a U-22Pu-4Am-2Np-40Zr Metallic Alloy Containing Rare Earths. Journal of Phase Equilibria and Diffusion, Vol. 30, No. 4, p. 309-317, (2009).

56.F. Poineau, E.E. Rodriguez, P.F. Weck, A.P. Sattelberger, P. Forster, T. Hartmann, G.W.C Silva, G.D. Jarvinen, A.K. Cheetham, K.R. Czerwinski: A review of technetium chemistry research conducted at the University of Nevada Las Vegas. Journal of Radioanalytical and Nuclear Chemistry (2009), 282(2), 605-609 (2009).

57.F. Poineau, T. Hartmann, G.W.C Silva, G.D. Jarvinen, K.R. Czerwinski: Preparation of Technetium Metal by Thermal Treatment under Argon/H2O. Journal of Radioanalytical and Nuclear Chemistry (2009), 279(1), 43-48.

58.T. Hartmann, F. Poineau, K.R. Czerwinski: Synthesis and Properties of Metallic Technetium and Technetium-Zirconium Alloys as Transmutation Target and Radioactive waste storage form in the UREX+1 Process. Atalante 2008: Nuclear Fuel Cycle for a Sustainable Future, Montpellier, France, 19-23 May, Proceedings P3_13, (2008).

59.L. Ma, T. Hartmann, M.A. Cheney, N.R. Birkner, P.K. Bhowmik: Characterization of an Inorganic Cryptomelane Nanomaterial Synthesized By A Novel Process Using Transmission Electron Microscopy and X-Ray Diffraction. Microscopy and Microanalysis (2008), 14(4), 28-334.

60.P. Paviet-Hartmann, T. Hartmann: Optimizing long-term prediction of nuclear waste disposal by implementing experimental data, submitted to J. of Hydrologic Engineering, Special Edition on: Contaminant Geohydrology for Radioactive Waste Disposal, Apr 2008.

61.N. R. Birkner, S. M. Steinberg, T. Hartmann, L. Ma, R. J. Fairhurst: Atomic resolution microanalysis of inorganic nanostructure material. Abstract of Papers, 235the ACS National Meeting, New Orleans, LA, April 6-10, 2008 (2008), INOR-354.

62.K. E. Lipinska-Kalita, O. A. Hemmers, P. E. Kalita, G. Mariotto, S. Gramsch, R. J. Hemley, T. Hartmann: High-Pressure Structural Integrity and Structural Transformations of Glass-Derived Nanocomposites: A Review, J. Phys. Chem. Solids, (2008), 69(9), 2268-2273.

63.P. E. Kalita, A. Cornelius, S. Sinogeikin, A. Martin, T. Hartman, and K. E. Lipinska-Kalita: Zirconium Hydride: Structural Integrity at High Pressures - A Synchrotron X-Ray Diffraction Study, Bull. Am. Phys. Soc. Vol. 53, No. 2, (2008),

64.P. E. Kalita, S. V. Sinogeikin, K. E. Lipinska-Kalita, T. Hartmann, X. Ke, C. Chen and A. L. Cornelius: Equation of State of TiH2 up to 90 GPa: a High-Resolution Synchrotron X-Ray Diffraction Study: submitted to Phys. Rev. B, April 2008

65.K. E. Lipinska-Kalita, P. E. Kalita, O. A. Hemmers, T. Hartmann: Equation of State of Gallium Oxide to 70 GPA: Comparison of Quasi-Hydrostatic and Non-Hydrostatic Compression. Phys. Rev., 77(9), 094123 (2008)

66.K. E. Lipinska-Kalita, P. E. Kalita, C. L. Gobin, O. A. Hemmers, T. Hartmann and G. Mariotto: Stability and Equation of State of a Nanocrystalline Ga-Ge Mullite in a Vitroceramic Composite: a Synchrotron X-Ray Diffraction Study. Phys. Rev. B 77(13), 134107 (2008)

67.E. Űstȕndag, K.E. Sickafus, T. Hartmann, R. Schwartz: 22nd Annual Conference on Composites, Advanced Ceramics and Structures, Ceramic Engineering and Science Proceedings, Volume 19(3), (2008).

68.K. E. Lipinska-Kalita, P. E. Kalita, O.. Hemmers, C. Gobin, G. Mariotto, T. Hartmann and L. Ma: Nanocrystalline Composite Media in the GeO2-Ga2O3 Mullite-Type System: Synthesis and Conventional and Synchrotron Based Characterization. Bull. Am. Phys. Soc. Vol. 52, No. 1, D43 13, p. 235 (2007)

69.P. E. Kalita, S. Sinogeikin, K. E. Lipinska-Kalita, T. Hartmann, A. Cornelius: On the High-Pressure Behavior of Titanium Hydride. Bull. Am. Phys. Soc. Vol. 52, No. 1, V23 8, p. 853 (2007)

70.C.B. Yeamans, G.W.S. Silva, G.S. Cerefice, K.R. Czerwinski, T. Hartmann, A.K. Burell, A.P. Sattelberger: Oxidative ammonolysis of uranium(IV) fluorides to uranium(VI) nitride. Journal of Nuclear Materials, Volume 374 Issues 1-2, p. 75-78, (2008).

71.P. Paviet-Hartmann, T. Hartmann: Optimizing Nuclear Waste Repository Development by Implementing Experimental Data on Radiolysis, Proceedings of the Global 2007 Conference, Boise, ID, September 9-13, (2007).

72.E.E. Rodriguez, F. Poineau, A. Llobet, A.P. Sattelberger, J. Bhattacharjee, U. Waghmare, T. Hartmann, A.K. Cheetham. Structural Studies of TcO2 by Neutron Powder Diffraction and First-Principle Calculations. Journal of the American Chemical Society, 129(33), 1024-10248, (2007).

73.N.R. Birkner, S.M. Steinberg, R.J. Faihurst, T. Hartmann, L. Ma: Nanostructure Mn-Oxide-Based Crystal Balls, Strings, and Rods: What’s in your Oxide: Abstracts, 63rd Southwest Regional Meeting of the American Chemical Society, Lubbock, TX, November 4-7, (2007).

74.P.E. Kalita, S.V. Sinogeikin, K.E. Lipinska-Kalita, T. Hartmann, A.L. Cornelius: Uncovering Secrets of Metal Hydrides at Extreme Pressures with Synchrotron Radiation, Poster Presentation at the Inaugural Energy Symposium, August15 to 17, (2007).

75.K.R. Czerwinski, F. Poineau, T. Hartmann, G.D. Jarvinen: Synthesis and characterization of technetium-zirconium alloys. Abstracts of Papers, 233rd ACS National Meeting, Chicago, IL, March 25-29, (2007).

76.D.A. Shaughnessy, P.A. Wilk, K.J. Moody, J.M. Kenneally, J.F. Wild, M.A. Stoyer, N.J. Stoyer, J.B. Patin, J.H. Landrum, R.W. Lougheed, Y.T. Oganessian, A.V. Yeremin, S.N. Dmitriev, T. Hartmann, K.R. Czerwinski: Ceramic plutonium target development for the MASHA separator for the synthesis of element 114. Special Publication – Royal Society of Chemistry, 305 (Recent Advances in Actinide Science), 293-295, (2006).

77.L. Ma, T. Hartmann, M.A. Cheney, N.R. Birkner: Nanomaterials Synthesized by Use of Controlled O2 and Cold Aging in Acidic Conditions. Microscopy and Microanalysis, 12, 740-741, (2006).

78.M.A. Cheney, N.R. Birkner, L. Ma, T. Hartmann, P.K. Bhowmik, V.F. Hodge: Novel synthesis of layer-structured black birnessite nanomaterial from brown birnessite with complex shape under controlled oxygen and acidic conditions. Abstracts of Papers, 232nd ACS National Meeting, San Francisco, CA, September 10-14, (2006).

79.M.A. Cheney, N.R. Birkner, L. Ma, T. Hartmann, P.K. Bhowmik, V.F. Hodge, S.M. Steinberg: Synthesis and characterization of inorganic double helices of cryptomelane nanomaterials; Abstracts of Papers, 232nd ACS National Meeting, San Francisco, CA, September 10-14, (2006).

80.M.A. Cheney, N.R. Birkner, L. Ma, T. Hartmann, P.K. Bhowmik, V.F. Hodge, S.M. Steinberg: Synthesis and characterization of inorganic double helices of cryptomelane nanomaterials; Colloids and Surfaces A, 289, 185-192, (2006).

81.R.C. Gostic, J.M. Gostic, N.A. Smith, T. Hartmann, K.R. Czerwinski: Application of sequential extractions to sorption of Pu. Abstracts of Papers, 231th ACS National Meeting, Atlanta, GA, March 26-30, NUCL-111, (2006).

82.G.W.C. Silva, O. Hemmers, A. Johnson, D. Lindle, T. Hartmann, P. Singaraju, K. E. Lipinska-Kalita: Fluorapatite as a nuclear waste form material for the FLEX process, 2006 International High-Level Waste Management Conference 2006, Las Vegas, NV, USA, April 30 – May 4, (2006).

83.P. Singaraju, K. E. Lipinska-Kalita, T. Hartmann, L. Ma, B. Das: Nanoscale Silicon Particles in Sandwich Structures Fabricated on Silicon Wafers: HRTEM Techniques as Imaging Tool, APS March Meeting, Baltimore, MD, USA, March 13-17, (2006).

84.A.D. Wright, K.S. Holliday, G.W.C. Silva, C-M. S. Gong, T. Hartmann, K. Czerwinski: Using radiochemistry to couple nuclear fuel development with separations and repository behavior for the advanced fuel cycle, 231st ACS National Meeting, Atlanta, Georgia, United States, March 26-30, (2006).

85.G.W.C. Silva, T. Hartmann, K. Czerwinski: Synthesis and characterization of GEN IV reactor fuels, 231st ACS National Meeting, Atlanta, Georgia, United States, March 26-30, (2006).

86.K.S. Holliday, T. Hartmann, K. Czerwinski: Zirconium-Magnesium oxides as inert matrix fuels, 231st ACS National Meeting, Atlanta, Georgia, United States, March 26-30, (2006).

87.P. Paviet-Hartmann, T. Hartmann: Separation of long-lived Fission Products Tc-99 and I-129 from Synthetic Effluents by Crown Ethers, Waste Management Conference 2006, Tucson, AZ, 26 Feb to 2nd March, (2006).

88.S.L. Voit, K.J. McClellan, C.R. Stanek, J.T. Dunwoody, T. Hartmann, S.A. Malloy, S.P. Willson, G.E. Egeland, R.W. Margevicius, H.T Hawkins: The design and Production of Nitride Fuels for the AFCI Program; Proceedings of Global 2005, Tsukuba, Japan, October 9-13, 2005, (2005).

89.P. Paviet-Hartmann, T. Hartmann: Optimization Long-Term Prediction of Nuclear Waste Disposal by Implementing Experimental Data; Presentation at INCEED 2005, Charlotte, NC, United States, July 24-30, 2005, (2005)

90.C.R. Stanek, K.J. McClellan, J.T. Dunwoody, R.W. Margevicius, T. Hartmann: Optimization of Nitride Fuel Processing through Surrogate Experiments; presentation submitted for Global 2005, Tsukuba, Japan, October 9-13, 2005, (2005).

91.T. Hartmann, P. Paviet-Hartmann: Application of high energy beam-line experiments on MgCl2 solution to simulate radiolysis in the near-field of a nuclear repository, WM’05, Tucson, AZ, United States, February 27 – March 3, 2005, (2005).

92.T. Hartmann, P. Paviet-Hartmann: The influence of Bromine on the irradiation-induced formation of alpha-radiolysis by-products featuring helium ion-beam line experiments. Abstracts of Papers, 229th ACS National Meeting, San Diego, CA, United States, March 13-17, 2005 (2005).

93.T. Hartmann, P. Paviet-Hartmann, C.J. Wetteland, N. Lu: Spectroscopic Determination of the Formation of Hypochlorous Acid, in Chloride Brine Solutions, Featuring 5 MeV Proton Beam Line Experiments. Radiation Physics and Chemistry, 66(5), 335-341(2003). LAUR-02-2845.

94.M. Ding, P. Paviet-Hartmann, S. Conradson, P. Palmer, J.L. Conca, T. Hartmann: Pu(VI) reduction by Fe and Al metal in the presence of alpha radiolysis by products in brine solutions. Abstracts of Papers, 225th ACS National Meeting, New Orleans, LA, United States, March 23-27, (2003).

95.J.B Rubin, C.M.V. Taylor, T. Hartmann, P. Paviet-Hartmann: Enhancing the properties of Portland cements using supercritical carbon dioxide, Green Chemistry Using Liquid and Supercritical Carbon Dioxide. 241-255, Publisher: Oxford University Press, Inc., New York, N. Y, Editor(s): DeSimone, Joseph M.; Tumas, William, (2003).

96.T. Hartmann, C.J. Wetteland, D. Ware, N. Lu, S. Sage, D. Moir, M. Walthall, P. Paviet-Hartmann: Spectroscopic investigation of the formation of -radiolysis by-products in chloride brines featuring high-energy proton beam line experiments. ACS meeting, August 18-22, NUCL-083, 2002, LAUR-02-3501.

97.M. Stan, T. J. Armstrong, D. P. Butt, T. C. Wallace, Y. S. Park, C. L. Haertling, T. Hartmann, and R. J. Hanrahan: Stability of Perovskite Compounds in the Ce-Ga-O and Pu-Ga-O System, J. Amer. Ceram. Soc., 85, 11, 2811-16, (2002).

98.N. Lu, T. Hartmann, J. Conca, P. Paviet-Hartmann, P. Palmer, G. Parker, B. Martinez B. Strietelmeier: Solution Chemistry and Plutonium-239 Behavior in Synthetic Brines After Exposure to Magnesium Oxide Backfill. ACS meeting, August 18-22, 2002, LAUR-02-1497.

99.T. Hartmann, P. Paviet-Hartmann, C. Wetteland, D. Ware, N. Lu, S. Sage, M. Walthall: Spectroscopic Investigation of the formation of hypochlorite, radiolysis by-product in 5M NaCl featuring high-energy proton beam line experiments. Proc. SPECTRUM 2002, 9th Biennal International Spectrum Conference, Reno, NV, USA, August 4-8 (2002), LAUR 02-2261.

100.P. Paviet-Hartmann, J. Dziewinski, T. Hartmann, S. Marczak, N. Lu, M. Walthall, A. Rafalski, Z. Zagorski

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