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Title: Glass binder development for a glass-bonded sodalite ceramic waste form

Abstract

This paper discusses work to develop Na2O-B2O3-SiO2 glass binders for immobilizing LiCl-KCl eutectic salt waste in a glass-bonded sodalite waste form following electrochemical reprocessing of used metallic nuclear fuel. Here, five new glasses with high Na2O contents were designed to generate waste forms having higher sodalite contents and fewer stress fractures. The structural, mechanical, and thermal properties of the new glasses were measured using variety of analytical techniques. The glasses were then used to produce ceramic waste forms with surrogate salt waste. The materials made using the glasses developed during this study were formulated to generate more sodalite than materials made with previous baseline glasses used. The coefficients of thermal expansion for the glass phase in the glass-bonded sodalite waste forms made with the new binder glasses were closer to the sodalite phase in the critical temperature region near and below the glass transition temperature. These improvements should result in lower probability of cracking in the full-scale monolithic ceramic waste form, leading to better long-term chemical durability. Additionally, a model generated during this study for predicting softening temperature of silicate binder glasses is presented.

Authors:
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Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1371995
Report Number(s):
PNNL-SA-123338
Journal ID: ISSN 0022-3115; AF5805020
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Nuclear Materials; Journal Volume: 489; Journal Issue: C
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; Sodalite-Bearing Ceramic Waste Form; sodalite; electrochemical; glass binder

Citation Formats

Riley, Brian J., Vienna, John D., Frank, Steven M., Kroll, Jared O., Peterson, Jacob A., Canfield, Nathan L., Zhu, Zihua, Zhang, Jiandong, Kruska, Karen, Schreiber, Daniel K., and Crum, Jarrod V. Glass binder development for a glass-bonded sodalite ceramic waste form. United States: N. p., 2017. Web. doi:10.1016/j.jnucmat.2017.03.041.
Riley, Brian J., Vienna, John D., Frank, Steven M., Kroll, Jared O., Peterson, Jacob A., Canfield, Nathan L., Zhu, Zihua, Zhang, Jiandong, Kruska, Karen, Schreiber, Daniel K., & Crum, Jarrod V. Glass binder development for a glass-bonded sodalite ceramic waste form. United States. doi:10.1016/j.jnucmat.2017.03.041.
Riley, Brian J., Vienna, John D., Frank, Steven M., Kroll, Jared O., Peterson, Jacob A., Canfield, Nathan L., Zhu, Zihua, Zhang, Jiandong, Kruska, Karen, Schreiber, Daniel K., and Crum, Jarrod V. Thu . "Glass binder development for a glass-bonded sodalite ceramic waste form". United States. doi:10.1016/j.jnucmat.2017.03.041.
@article{osti_1371995,
title = {Glass binder development for a glass-bonded sodalite ceramic waste form},
author = {Riley, Brian J. and Vienna, John D. and Frank, Steven M. and Kroll, Jared O. and Peterson, Jacob A. and Canfield, Nathan L. and Zhu, Zihua and Zhang, Jiandong and Kruska, Karen and Schreiber, Daniel K. and Crum, Jarrod V.},
abstractNote = {This paper discusses work to develop Na2O-B2O3-SiO2 glass binders for immobilizing LiCl-KCl eutectic salt waste in a glass-bonded sodalite waste form following electrochemical reprocessing of used metallic nuclear fuel. Here, five new glasses with high Na2O contents were designed to generate waste forms having higher sodalite contents and fewer stress fractures. The structural, mechanical, and thermal properties of the new glasses were measured using variety of analytical techniques. The glasses were then used to produce ceramic waste forms with surrogate salt waste. The materials made using the glasses developed during this study were formulated to generate more sodalite than materials made with previous baseline glasses used. The coefficients of thermal expansion for the glass phase in the glass-bonded sodalite waste forms made with the new binder glasses were closer to the sodalite phase in the critical temperature region near and below the glass transition temperature. These improvements should result in lower probability of cracking in the full-scale monolithic ceramic waste form, leading to better long-term chemical durability. Additionally, a model generated during this study for predicting softening temperature of silicate binder glasses is presented.},
doi = {10.1016/j.jnucmat.2017.03.041},
journal = {Journal of Nuclear Materials},
number = C,
volume = 489,
place = {United States},
year = {Thu Jun 01 00:00:00 EDT 2017},
month = {Thu Jun 01 00:00:00 EDT 2017}
}