ISG-2: properties of the second International Simple Glass

ISG-2: properties of the second International Simple Glass

Given the importance of glass materials to society, their durability when exposed to aqueous solutions is a critical area for research, particularly for vitrified radioactive wastes. This spurred an international team to fabricate a standardized composition based on waste immobilization glass called...

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Bibliographic Details
Published in:Npj Materials degradation Vol. 7; no. 1; pp. 47 - 9
Main Authors: Ryan, Joseph V., Smith, Nicholas J., Neeway, James J., Reiser, Joelle T., Parruzot, Benjamin, Tietje, Steve, Bakowska, Elzbieta, Crum, Jarrod V., Schaut, Robert A.
Format: Journal Article
Language:English
Published: London Nature Publishing Group UK 06-06-2023
Nature Publishing Group
Springer
Nature Portfolio
Subjects:
639/301/299/892
639/4077/4091/4094
Aqueous solutions
Chemistry and Materials Science
Composition
Corrosion
Corrosion and Coatings
Corrosion resistance
Electrochemistry
Homogeneity
Laboratories
MATERIALS SCIENCE
R&D
Radioactive wastes
Raw materials
Research & development
Structural Materials
Thermodynamic properties
Tribology
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Summary:Given the importance of glass materials to society, their durability when exposed to aqueous solutions is a critical area for research, particularly for vitrified radioactive wastes. This spurred an international team to fabricate a standardized composition based on waste immobilization glass called the International Simple Glass (ISG), which has been the subject of numerous experimental and computational studies focused on aqueous corrosion resistance. With the original batch of ISG nearly depleted, the international team designed and fabricated a standard glass material, ISG-2, where half the Ca in the original composition was replaced with Mg by mole. This paper presents information on both the ISG-2 composition and a new batch with the same nominal composition as the original ISG, designated ISG-1, including their homogeneity, their physical and thermal properties. The results of static alteration experiments are presented as well to provide a baseline for future aqueous corrosion performance investigations.
Bibliography:PNNL-SA-176122
USDOE
AC05-76RL01830
ISSN:2397-2106
2397-2106
DOI:10.1038/s41529-023-00352-7