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Title: Crystallization behavior of iron- and boron-containing nepheline (Na2O·Al2O3·2SiO2) based model high-level nuclear waste glasses

Journal Article · · Journal of the American Ceramic Society
DOI: https://doi.org/10.1111/jace.15936 · OSTI ID:1484678
 [1]; ORCiD logo [2];  [3];  [1]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [2]; ORCiD logo [1]
  1. Rutgers Univ., Piscataway, NJ (United States). Dept. of Materials Science and Engineering
  2. Washington State Univ., Pullman, WA (United States). School of Mechanical & Materials Engineering. Materials Science & Engineering Program
  3. Sheffield Hallam Univ., Sheffield (United Kingdom). Materials and Engineering Research Inst.
  4. Idaho National Lab. (INL), Idaho Falls, ID (United States). Materials Science and Engineering Dept.

This work focuses on understanding the relationship between iron redox, composition, and heat-treatment atmosphere in nepheline-based model high-level nuclear waste glasses. Glasses in the Na2O–Al2O3–B2O3–Fe2O3–SiO2 system with varying Al2O3/Fe2O3 and Na2O/Fe2O3 ratios have been synthesized by melt-quench technique and studied for their crystallization behavior in different heating atmospheres—air, inert (N2), and reducing (96%N2–4%H2). The compositional dependence of iron redox chemistry in glasses and the impact of heating environment and crystallization on iron coordination in glass-ceramics have been investigated by Mössbauer spectroscopy and vibrating sample magnetometry. While iron coordination in glasses and glass-ceramics changed as a function of glass chemistry, the heating atmosphere during crystallization exhibited minimal effect on iron redox. The change in heating atmosphere did not affect the phase assemblage but did affect the microstructural evolution. While glass-ceramics produced as a result of heat treatment in air and N2 atmospheres developed a golden/brown colored iron-rich layer on their surface, those produced in a reducing atmosphere did not exhibit any such phenomenon. Furthermore, while this iron-rich layer was observed in glass-ceramics with varying Al2O3/Fe2O3 ratio, it was absent from glass-ceramics with varying Na2O/Fe2O3 ratio. An explanation of these results has been provided on the basis of kinetics of diffusion of oxygen and network modifiers in the glasses under different thermodynamic conditions. Finally, the plausible implications of the formation of iron-rich layer on the surface of glass-ceramics on the chemical durability of high-level nuclear waste glasses have been discussed.

Research Organization:
Idaho National Lab. (INL), Idaho Falls, ID (United States); Rutgers Univ., Piscataway, NJ (United States); Washington State Univ., Pullman, WA (United States)
Sponsoring Organization:
USDOE Office of Environmental Management (EM); USDOE Office of Nuclear Energy (NE), Nuclear Energy University Program (NEUP)
Grant/Contract Number:
AC07-05ID14517; EM0003207; EM0002904; NE0008597
OSTI ID:
1484678
Report Number(s):
INL/JOU--18-45891-Rev000
Journal Information:
Journal of the American Ceramic Society, Journal Name: Journal of the American Ceramic Society Journal Issue: 3 Vol. 102; ISSN 0002-7820
Publisher:
American Ceramic SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (72)

Crystallization of iron-containing sodium aluminosilicate glasses in the NaAlSiO 4 -NaFeSiO 4 join : CRYSTALLIZATION NAALSIO journal April 2017
A Reinvestigation of Low-Carnegieite by XRD, NMR, and TEM journal May 1993
rock magnetism book January 2014
The compressibility of silicate liquids containing Fe2O3 and the effect of composition, temperature, oxygen fugacity and pressure on their redox states journal July 1991
High temperature structural investigation of Na2O�0.5Fe2O3�3SiO2 and Na2O�FeO�3SiO2 melts and glasses journal January 1993
The structural state of iron in oxidized vs. reduced glasses at 1 atm: A57Fe M�ssbauer study journal January 1985
Mineral Mössbauer spectroscopy: Correlations between chemical shift and quadrupole splitting parameters journal December 1994
Structure of glasses in the Na2O - Fe2O3 - B2O3 - SiO2 system journal January 2000
Redox equilibria and kinetics of iron in a borosilicate glass-forming melt journal July 1986
Chemical diffusion and crystalline nucleation during oxidation of ferrous iron-bearing magnesium aluminosilicate glass journal April 1990
Compositional dependence of redox equilibria in sodium silicate glasses journal November 1994
Redox equilibria in glass journal March 1996
Coordination of iron in oxide glasses through high-resolution K-edge spectra: Information from the pre-edge journal November 1983
Preparation of nepheline glass-ceramics and their application as dental porcelain journal May 1994
Environment of ferrous iron in CaFeSi2O6 glass; contributions of EXAFS and molecular dynamics journal August 2000
Dynamic oxidation of a Fe2+-bearing calcium–magnesium–aluminosilicate glass: the effect of molecular structure on chemical diffusion and reaction morphology journal December 2000
Crystallization phenomena in iron-rich glasses journal March 2001
An XPS study of iron sodium silicate glass surfaces journal December 1996
Mössbauer spectroscopy measurement of iron oxidation states in float composition silica glasses journal May 1998
Redox and clustering of iron in silicate glasses journal August 1999
Mössbauer effect and X-ray distribution function analysis in complex Na2O–CaO–ZnO–Fe2O3–Al2O3–SiO2 glasses and glass-ceramics journal May 1999
Crystallisation and microstructure of nepheline–forsterite glass-ceramics journal April 2013
Kinetics of iron oxidation in silicate melts: a preliminary XANES study journal December 2004
Probing iron redox state in multicomponent glasses by XPS journal September 2012
Effect of iron metal and siderite on the durability of simulated archeological glassy material journal November 2013
The structural behavior of ferric and ferrous iron in aluminosilicate glass near meta-aluminosilicate joins journal May 2006
Kinetics and mechanisms of iron redox reactions in silicate melts: The effects of temperature and alkali cations journal April 2008
Phase relations of the nepheline-kalsilite system: X-ray diffraction and Mössbauer spectroscopy journal July 2017
Preparation and study of magnetic properties of silico phosphate glass and glass-ceramics having iron and zinc oxide journal November 2009
Effects of Al2O3, B2O3, Na2O, and SiO2 on nepheline formation in borosilicate glasses: chemical and physical correlations journal December 2003
Partitioning of gadolinium and its induced phase separation in sodium-aluminoborosilicate glasses journal January 2004
Effect of the redox state and concentration of iron on the crystallization behavior of iron-rich aluminosilicate glasses journal May 2005
Local structure and medium range ordering of tetrahedrally coordinated Fe3+ ions in alkali–alkaline earth–silica glasses journal July 2007
Inward cationic diffusion in glass journal June 2009
Structural analysis of some sodium and alumina rich high-level nuclear waste glasses journal February 2012
Selective behaviour of dilute Fe3+ ions in silicate glasses: an Fe K-edge EXAFS and XANES study journal March 2014
Nepheline crystallization in boron-rich alumino-silicate glasses as investigated by multi-nuclear NMR, Raman, & Mössbauer spectroscopies journal February 2015
Predictive modeling of crystal accumulation in high-level waste glass melters processing radioactive waste journal November 2017
Preparation of nepheline glass–ceramics for dental applications journal December 2008
SON68 Glass Alteration Enhanced by Magnetite journal January 2013
Rock Magnetism book January 2010
Compositional Dependence of Solubility/Retention of Molybdenum Oxides in Aluminoborosilicate-Based Model Nuclear Waste Glasses journal January 2018
Energy Additivity in Oxygen-containing Crystals and Glasses. journal April 1946
Energy Additivity in Oxygen-containing Crystals and Glasses. journal February 1947
First-order reversal curve diagrams: A new tool for characterizing the magnetic properties of natural samples journal December 2000
FORCinel: An improved algorithm for calculating first-order reversal curve distributions using locally weighted regression smoothing: FORCINEL ALGORITHM journal May 2008
Viscous flow behavior of four iron-containing silicates with alumina, effects of composition and oxidation condition journal January 1983
Rock magnetism journal January 1971
Various effects of magnetite on international simple glass (ISG) dissolution: implications for the long-term durability of nuclear glasses journal July 2017
Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides journal September 1976
Submixture model to predict nepheline precipitation in waste glasses journal May 2016
Real-time monitoring of crystal accumulation in the high-level waste glass melters using an electrical conductivity method journal May 2017
Submixture model to predict nepheline precipitation in waste glasses journal May 2021
Crystallization and Chemical Strengthening of Nepheline Glass-Ceramics journal February 1967
Formation of Nepheline Glass-Ceramics Using Nb2O5 as a Nucleation Catalyst journal September 1974
Influence of Fe 3+ /Fe 2+ Ratio on the Crystallization of Iron-Rich Glasses Made with Industrial Wastes journal December 2000
Thermochemical Modeling of Oxide Glasses journal December 2002
Effects of the Iron Content and Redox State on the Structure of Sodium Borosilicate Glasses: A Raman, Mössbauer and Boron K-Edge XANES Spectroscopy Study journal January 2012
Inward and Outward Diffusion of Modifying Ions and its Impact on the Properties of Glasses and Glass-Ceramics: Inward an d Outward Diffusion of Modifying Ions journal May 2011
Nepheline Crystallization in Nuclear Waste Glasses: Progress Toward Acceptance of High-Alumina Formulations journal August 2011
Elucidating the Effect of Iron Speciation (Fe 2+ /Fe 3+ ) on Crystallization Kinetics of Sodium Aluminosilicate Glasses journal April 2016
Understanding the structural origin of crystalline phase transformations in nepheline (NaAlSiO 4 )‐based glass‐ceramics journal April 2017
MÖSsbauer Spectroscopy of Earth and Planetary Materials journal May 2006
Nepheline solid solutions journal June 1959
Leaching of Devitrified Glass Containing Simulated SRP Nuclear Waste journal January 1984
Effect of Li, Fe, and B Addition on the Crystallization Behavior of Sodium Aluminosilicate Glasses as Analogues for Hanford High Level Waste Glasses journal December 2016
A Mössbauer study of the oxidation state of Fe in silicate melts journal November 2004
Nepheline structural and chemical dependence on melt composition journal February 2016
Optical Basicity and Nepheline Crystallization in High Alumina Glasses report February 2011
NEPHELINE SOLID SOLUTIONS IN THE SYSTEM Na2O-Fe2O3-Al2O3-SiO2 journal January 1972
The binary system; na 2 Al 2 Si 2 O 8 (nephelite, carnegieite); CaAl 2 Si 2 O 8 (anorthite) journal June 1912
Ion-Exchange in Glass-Ceramics journal August 2016

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