JOM

Journal: JOM

Publisher

Springer

ISSN

1047-4838
1543-1851

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Publications 1 - 10 of 18

Concentrated solar energy for thermochemically producing liquid fuels from CO2 and H2O
Loutzenhiser, Peter G.; Stamatiou, Anastasia; Villasmil, Willy; et al. (2011)
JOM
Separation of Uptake of Water and Ions in Porous Materials Using Energy Resolved Neutron Imaging
Losko, Adrian S.; Daemen, Luke; Hosemann, Peter; et al. (2020)
JOM
Migration of water and ions dissolved in water through concrete is of interest in civil engineering. In particular, the behavior of radionuclides dissolved in water is of great interest to the nuclear industry because significant numbers of nuclear structures contain large amounts of concrete, acting as a barrier to radionuclides against entering the environment. Study of the migration of water molecules and ions in concrete hitherto required destructive chemical analysis. In this work, we present a non-destructive probe to investigate the uptake of uranium, iodine and water into mortar in situ using a time-of-flight neutron imaging method that allows selecting different neutron energies, providing elemental sensitivity in the analysis of the absorption process. First results indicate that water molecules are the fastest migrating species while iodine is significantly slower, and uranium was not observed to migrate through the structure within the time frame of the experiment and furthermore blocks the migration of water.
Production of Si by Vacuum Carbothermal Reduction of SiO2 using Concentrated Solar Energy
Loutzenhiser, Peter G.; Tuerk, Ozan; Steinfeld, Aldo (2010)
JOM
On the Development of a Zinc Vapor Condensation Process for the Solar Carbothermal Reduction of Zinc Oxide
Tzouganatos, Nikolaos; Dell'Amico, Mark; Wieckert, Christian; et al. (2015)
JOM
CALPHAD Uncertainty Quantification and TDBX
Lin, Yu; Saboo, Abhinav; Frey, Ramon; et al. (2021)
JOM
CALPHAD uncertainty quantification (UQ) is the foundation of materials design with quantified confidence. We report a framework and software packages to enable CALPHAD UQ assessment and calculation using commercial CALPHAD software (Thermo-Calc). This Bayesian inference framework is coupled with a Markov chain Monte Carlo algorithm to establish uncertainty traces with a given thermodynamic database file (TDB) and corresponding experimental data points. This general framework is demonstrated with the Ni–Cr binary system. The algorithm is firstly validated on synthetic data with known ground truth. Then it is applied to real experimental data to generate posterior traces. We develop a file format named TDBX, which provides a single source of truth by combining the original TDB content and the traces for each assessed Gibbs energy parameter. CALPHAD UQ calculations are performed based on the TDBX file, from which uncertainties for phase boundaries, enthalpy curves, and solidification range are collected as examples of basic design parameters. This TDBX file with corresponding scripts are made open-source. The combination of CALPHAD UQ assessments and calculations connected by TDBX supports uncertainty-assisted modeling, enabling the integrated application of modern design with uncertainty methodologies to computational materials design. © 2020 The Minerals, Metals & Materials Society.
In Situ Synchrotron X-Ray Diffraction and Small Angle X-Ray Scattering Studies on Rapidly Heated and Colled Ti-Al and Al-Cu-Mg Alloys Using Laser Based Heating
Kenel, C.; Schloth, P.; Petegem, S. van; et al. (2016)
JOM
Comparison of In Situ Micromechanical Strain-Rate Sensitivity Measurement Techniques
Wehrs, Juri; Mohaty, Gaurav; Guillonneau, Gaylord; et al. (2015)
JOM
Materials and Processes for Renewable Energy Technologies
Steinfeld, Aldo (2013)
JOM
Nanoporous Ni-based superalloy membranes by selective phase dissolution
Rösler, Joachim; Näth, Oliver; Jäger, Stefan; et al. (2005)
JOM
Measurements of experimentally grown 3-D xenon multiplets and comparative phase-field simulations
Singer, H. M.; Singer, I.; Bilgram, J. H. (2007)
JOM

Publications 1 - 10 of 18

Journal: JOM

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