Materials Scientist
Materials Scientist

Publications

2025

  • Rigby J.C., J. Marcial, R. Pokorny, J. Klouzek, J. Klouzek, K. Han, and N.M. Washton, et al. 2025. "Boron Nitride: Novel ceramic reductant for low-activity waste vitrification." Journal of the American Ceramic Society 108, no. 2:Art No. e20192. PNNL-SA-193254. doi:10.1111/jace.20192

2024

  • Ferkl P., P. Malviya, P.R. Hrma, A.A. Kruger, and A. Goel. 2024. "Modeling Viscosity of Commercial Glass Melts: Adam-Gibbs Equation and Gaussian Process Regression." Journal of Asian Ceramic Societies 12, no. 4:306-321. PNNL-SA-197235. doi:10.1080/21870764.2024.2407040
  • Ferkl P., P.R. Hrma, J. Klouzek, J. Klouzek, A.A. Kruger, and R. Pokorny. 2024. "Cold-cap structure in a slurry-fed electric melter." International Journal of Applied Glass Science 15, no. 1:73-87. PNNL-SA-185608. doi:10.1111/ijag.16645
  • Ferkl P., X. Lu, A.A. Kruger, and J.D. Vienna. 2024. "Temperature and Composition Dependence Modeling of Viscosity and Electrical Conductivity of Low-Activity Waste Glass Melts." Journal of Non-crystalline Solids 640, no. _:Art. No. 123119. PNNL-SA-197233. doi:10.1016/j.jnoncrysol.2024.123119
  • Guillen D., P. Ferkl, R. Pokorny, M.A. Hall, P.R. Hrma, and A.A. Kruger. 2024. "Numerical Modeling of Joule Heated Ceramic Melter." Materials Letters 362, no. _:Art. No. 136201. PNNL-SA-197239. doi:10.1016/j.matlet.2024.136201
  • Hrma P.R., P. Ferkl, R. Pokorny, and A.A. Kruger. 2024. "Effect of cold-cap-bottom shear stress on primary foam stability." Journal of Non-crystalline Solids 646, no. _:Art No. 123262. PNNL-SA-202423. doi:10.1016/j.jnoncrysol.2024.123262
  • Hrma P.R., P. Ferkl, R. Pokorny, and A.A. Kruger. 2024. "Glass production rate in an electric melter: melting rate correlation and primary foam stability." Materials Letters 369, no. _:Art. No. 136689. PNNL-SA-193238. doi:10.1016/j.matlet.2024.136689
  • Kunc J., J. Klouzek, M. Vernerova, P. Cincibusova, P. Ferkl, J.L. George, and P.R. Hrma, et al. 2024. "Viscosity of transient glass-forming melt and its relation to foaming during batch-to-glass conversion." Materials Letters 363, no. _:Art No. 136284. PNNL-SA-195728. doi:10.1016/j.matlet.2024.136284
  • Vernerova M., K. Šůsová, M. KohoutkovÁ, J. Klouzek, J. Klouzek, P. Cincibusova, and P. Ferkl, et al. 2024. "Effect of Glass Forming Additives on Low-Activity Waste Feed Conversion to Glass." Journal of Nuclear Materials 593, no. _:Art. No. 155003. PNNL-SA-192988. doi:10.1016/j.jnucmat.2024.155003
  • Younk S., J.L. George, S.A. Luksic, J. Marcial, D.A. Cutforth, P.R. Hrma, and P. Ferkl, et al. 2024. "Thermo-rheological snapshot of melter feed conversion to glass." Journal of the American Ceramic Society 108, no. 3:Art. No. e20208. PNNL-SA-186061. doi:10.1111/jace.20208

2023

  • Ferkl P., P.R. Hrma, J. Klouzek, J. Klouzek, A.A. Kruger, and R. Pokorny. 2023. "Effect of material properties on batch-to-glass conversion kinetics." International Journal of Applied Glass Science 14, no. 4:491-501. PNNL-SA-179119. doi:10.1111/ijag.16631
  • Hrma P.R., P. Ferkl, and A.A. Kruger. 2023. "Arrhenian to non-Arrhenian crossover in glass melt viscosity." Journal of Non-crystalline Solids 619. PNNL-SA-185520. doi:10.1016/j.jnoncrysol.2023.122556
  • Kunc J., J. Klouzek, M. VernerovÁ;, P. Cincibusova, P. Ferkl, M.A. Hall, and W.C. Eaton, et al. 2023. "Effect of feed composition on the production of off-gases during vitrification of simulated low-activity nuclear waste." Progress in Nuclear Energy 166. PNNL-SA-169448. doi:10.1016/j.pnucene.2023.104932

2022

  • Ferkl P., P.R. Hrma, and A.A. Kruger. 2022. "Augmented Adam-Gibbs model for glass melt viscosity and configuration entropy as functions of temperature and composition." Journal of Non-crystalline Solids 595. PNNL-SA-173804. doi:10.1016/j.jnoncrysol.2022.121832
  • Ferkl P., P.R. Hrma, and A.A. Kruger. 2022. "Parsimonious viscosity-composition relationships for high-temperature multicomponent glass melts." Journal of Asian Ceramic Societies 10, no. 1:83-98. PNNL-SA-165123. doi:10.1080/21870764.2021.2012903
  • Hrma P.R., P. Ferkl, and A.A. Kruger. 2022. "Glass length: workability and meltability of glass as a function of glass melt fragility." Journal of Non-crystalline Solids 597. PNNL-SA-175945. doi:10.1016/j.jnoncrysol.2022.121931

2021

  • Ferkl P., P.R. Hrma, J. Klouzek, J. Klouzek, M. Vernerova, A.A. Kruger, and R. Pokorny. 2021. "Model for batch-to-glass conversion: Coupling the heat transfer with conversion kinetics." Journal of the Asian Ceramic Society 9, no. 2:652 - 664. PNNL-SA-159638. doi:10.1080/21870764.2021.1907914
  • Lee S., D.A. Cutforth, D. Mar, J. Klouzek, J. Klouzek, P. Ferkl, and D.R. Dixon, et al. 2021. "Melting rate correlation with batch properties and melter operating conditions during conversion of nuclear waste melter feeds to glasses." International Journal of Applied Glass Science 12, no. 3:398-414. PNNL-SA-155022. doi:10.1111/ijag.15911