Explanipedia

Expansion of the Direct Feed High-Level Waste Glass Composition in the High Al Range Open

Renee L. Russell, Vivianaluxa Gervasio, Xiaonan Lu, Nicholas Lumetta, Nathan Canfield , et al. · 2025

Alteration of archeological and natural analogs for radioactive waste glass under different environmental conditions Open

José Marcial, Julian Chesnutt, James J. Neeway, Eshchar Gichon, Clare L. Thorpe , et al. · 2025

The development and application of the stirred‐reactor coupon analysis (SRCA) test method Open

Joelle T. Reiser, James J. Neeway, Scott K. Cooley, Benjamin Parruzot, Alejandro Heredia‐Langner , et al. · 2025

A new technique, termed the stirred‐reactor coupon analysis (SRCA) method, has been developed to measure the rate of glass dissolution in forward‐rate conditions. Monolithic glass coupons are partially masked with an inert material before …

The effectiveness of TRIS and ammonium buffers in glass dissolution studies: a comparative analysis Open

R. Ravikumar, Clare L. Thorpe, Claire L. Corkhill, Sam A. Walling, James J. Neeway , et al. · 2025

Alteration of archeological and natural analogues for radioactive waste glass under different environmental conditions Open

José Marcial, Julian Chesnutt, James J. Neeway, Eschar Gichon, Clare L. Thorpe , et al. · 2025

Hundreds of thousands of cubic meters of legacy radioactive waste from plutonium production stored at U.S. Department of Energy’s Hanford site will be immobilized in glass for disposal. The glass must limit radionuclide release into the en…

The Effectiveness of TRIS and Ammonium buffers in Glass Dissolution Studies: A Comparative Analysis Open

Clare L. Thorpe, R. Ravikumar, Claire L. Corkhill, Samual Walling, James J. Neeway , et al. · 2024

Selecting appropriate buffers is crucial for evaluating the chemical durability of glass under controlled conditions such as in the EPA 1313 test designed to measure elemental release as a function of pH. This study investigates the effica…

Durability testing of actual Hanford waste glasses and their non-radioactive simulant glasses Open

Joelle T. Reiser, Elsa A. Cordova, James J. Neeway, Scott K. Cooley, Benjamin Parruzot , et al. · 2024

Application of the immobilized low-activity waste glass corrosion model to the static dissolution of 24 statistically-designed alkali-borosilicate waste glasses Open

Sébastien Kerisit, James J. Neeway, Charmayne Lonergan, Benjamin Parruzot, Jarrod V. Crum , et al. · 2024

Application of Ph-Dependent Environmental Protection Agency Test Method 1313 to Low-Activity Nuclear Waste Glass Open

Seungrag Choi, José Marcial, James J. Neeway, Carolyn I. Pearce, Sébastien Kerisit , et al. · 2024

Microbial interactions with phosphorus containing glasses representative of vitrified radioactive waste Open

Clare L. Thorpe, Rachel Crawford, Russell J. Hand, Joshua Thomas Radford, Claire L. Corkhill , et al. · 2023

The presence of phosphorus in borosilicate glass (at 0.1 - 1.3 mol% P₂O₅) and in iron-phosphate glass (at 53 mol% P₂O₅) stimulated the growth and metabolic activity of anaerobic bacteria in model…

Effect of composition on the corrosion behavior of 24 statistically-designed alkali-borosilicate waste glasses Open

James J. Neeway, Joelle T. Reiser, Sébastien Kerisit, Richard A. Reyes, Richard C. Daniel , et al. · 2023

The extent of glass dissolution is dependent on time, temperature, solution chemistry, and the glass composition, among other factors. To obtain an understanding of the relative behavior of different glasses, we have designed and made a ma…

Formulation and testing of a high-tin borosilicate nuclear waste glass for in-can melting Open

Jarrod V. Crum, John D. Vienna, Brian J. Riley, Joshua Silverstein, Ryan M. Kissinger , et al. · 2023

ISG-2: properties of the second International Simple Glass Open

Joseph V. Ryan, Nicholas J. Smith, James J. Neeway, Joelle T. Reiser, Benjamin Parruzot , et al. · 2023

Enhanced Hanford Low-Activity Waste Glass Property Data Development: Phase 5 and Phase 6 Open

Vivianaluxa Gervasio, Charmayne Lonergan, John D. Vienna, Jesse Lang, Björn Westman , et al. · 2023

This report summarizes the data collected on two test matrices of low-activity waste (LAW) glass compositions intended to expand the composition-property database: Low-Activity Waste (LAW) Phase 5: Expansion of LAW Glass Composition Bounda…

Chemical durability assessment of enhanced low-activity waste glasses through EPA method 1313 Open

José Marcial, James J. Neeway, Carolyn I. Pearce, Lorena Nava-Farias, Michael J. Schweiger , et al. · 2023

In this work, we report the progress of the Glass Leaching Assessment for Durability (GLAD) program on the implementation of the United States Environmental Protection Agency (EPA) Leaching Environmental Assessment Framework pH-dependent l…

Product Consistency Test and Vapor Hydration Test Comparisons of a Radioactive Hanford Waste Glass with its Non-Radioactive Simulant Glass Open

Joelle T. Reiser, James J. Neeway, Benjamin Parruzot, Elsa A. Cordova, Scott K. Cooley , et al. · 2023

Product Consistency Tests (PCT) and Vapor Hydration Tests (VHT) were performed on a radioactive glass made from Hanford tank AP-107 waste (i.e., R-AP-107) and its non-radioactive equivalent glass made from simulated tank waste (i.e., S-AP-…

Formation of Zeolites Responsible for Waste Glass Rate Acceleration: An Experimental and Computational Study for Understanding Thermodynamic and Kinetic Processes Open

Jeffrey D. Rimer, James J. Neeway, Giannis Mpourmpakis, Radha Kishan Motkuri · 2023

Before nuclear waste glasses can be disposed at geological disposal facilities, a performance assessment (PA) must be conducted to provide confidence to the regulators and public that the release rates of radioisotopes and hazardous materi…

The effect of metals on zeolite crystallization kinetics with relevance to nuclear waste glass corrosion Open

Adam J. Mallette, Joelle T. Reiser, Giannis Mpourmpakis, Radha Kishan Motkuri, James J. Neeway , et al. · 2023

Geologic disposal of vitrified radioactive material is planned in several countries, but there are remaining uncertainties related to the long-term stability of glass exposed to groundwater. Specifically, the crystallization of aluminosili…

Micro- and Nanoscale Surface Analysis of Late Iron Age Glass from Broborg, a Vitrified Swedish Hillfort Open

Bethany E. Matthews, James J. Neeway, Lorena Nava Farias, José Marcial, Bruce W. Arey , et al. · 2023

Archaeological glasses with prolonged exposure to biogeochemical processes in the environment can be used to understand glass alteration, which is important for the safe disposal of vitrified nuclear waste. Samples of mafic and felsic glas…

Microbial Interactions with Phosphorous Containing Glasses Representative of Vitrified Radioactive Waste Open

Clare L. Thorpe, Rachel Crawford, Russell J. Hand, Joshua Thomas Radford, Claire L. Corkhill , et al. · 2023

Understanding formation thermodynamics of structurally diverse zeolite oligomers with first principles calculations Open

Sungil Hong, Adam J. Mallette, James J. Neeway, Radha Kishan Motkuri, Jeffrey D. Rimer , et al. · 2022

Formation Thermodynamics of zeolite oligomers.

The Effect of Metals on Zeolite Crystallization Kinetics with Relevance to Nuclear Waste Glass Corrosion Open

James J. Neeway, Joelle T. Reiser, Giannis Mpourmpakis, Radha Kishan Motkuri, Adam J. Mallette , et al. · 2022

Vitrification and geologic disposal of radioactive material is planned in several countries, but there are remaining uncertainties related to the long-term stability of glass exposed to groundwater. Specifically, the crystallization of alu…

Effect of network connectivity on behavior of synthetic Broborg hillfort glasses Open

José Marcial, Maria Rita Cicconi, Carolyn I. Pearce, Jaroslav Kloužek, James J. Neeway , et al. · 2022

There is wide industrial interest in developing robust models of long‐term (>100 years) glass durability. Archeological glass analogs, glasses of similar composition, and alteration conditions to those being tested for durability can be us…

ISG-2: Properties of the Second International Simple Glass Open

Joseph V. Ryan, Nicholas J. Smith, James J. Neeway, Joelle T. Reiser, Benjamin Parruzot , et al. · 2022

Given the importance of glass materials to society, their durability when exposed to aqueous solutions is a critical area for research. The range of desired durations to sustain the integrity of the material may be unique to this material …

Heteroatom Manipulation of Zeolite Crystallization: Stabilizing Zn-FAU against Interzeolite Transformation Open

Adam J. Mallette, Sungil Hong, Emily Freeman, Sarah A. Saslow, Sebastian T. Mergelsberg , et al. · 2022

The preparation of metastable zeolites is often restricted to a limited range of synthesis conditions, which is exemplified in commercial syntheses lacking organics to stabilize the crystal structure. In the absence of an organic structure…

Effect of zeolite type, temperature, and pH on Stage III glass alteration behavior for two nuclear waste glasses Open

Benjamin Parruzot, Jarrod V. Crum, Joelle T. Reiser, James J. Neeway, Sébastien Kerisit , et al. · 2022

The behavior of iodine in stabilized granular activated carbon and silver mordenite in cementitious waste forms Open

Alessandra Fujii Yamagata, Sarah A. Saslow, James J. Neeway, Tamás Varga, Loren R. Reno , et al. · 2022

Evaluation of Degradation Mechanisms for Solid Secondary Waste Grout Waste Forms Open

R. Matthew Asmussen, Sarah A. Saslow, Gary L. Smith, Agathe Bourchy, James J. Neeway , et al. · 2021

The overall objective of this work is to provide defensibility for the long-term performance of grouted Hanford SSW streams when disposed in a near surface disposal facility, IDF, on the Hanford Site. Providing defensibly for the long-term…

Forty years of durability assessment of nuclear waste glass by standard methods Open

Clare L. Thorpe, James J. Neeway, Carolyn I. Pearce, Russell J. Hand, Adam J. Fisher , et al. · 2021

On the dissolution of a borosilicate glass with the use of isotopic tracing – Insights into the mechanism for the long-term dissolution rate Open

Denis M. Strachan, James J. Neeway, Larry R. Pederson, Daniel K. Schreiber, Alexandre V. Mitroshkov , et al. · 2021

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