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An Alternative Host Matrix Based on Iron Phosphate Glasses for the Vitrification of Specialized Nuclear Waste Forms

Technical Report ·
DOI:https://doi.org/10.2172/827406· OSTI ID:827406
Certain high level wastes (HLW) in the U.S. contain components such as phosphates, heavy metals, and halides which make them poorly suited for disposal in borosilicate glasses. Iron phosphate glasses appear to be a technically feasible alternative to borosilicate glasses for vitrifying these HLWs. The iron phosphate glasses mentioned above and their nuclear wasteforms are relatively new, so little is known about their atomic structure, redox equilibria, structure-property relationships, and crystallization products and characteristics. The objective of this research is to gain such information for the binary iron-phosphate glasses as well as iron phosphate wasteforms so that a comprehensive scientific assessment can be made of their usefulness in nuclear waste disposal.
Research Organization:
University of Missouri-Rolla, Rolla, Missouri (US)
Sponsoring Organization:
USDOE Office of Environmental Management (EM) (US)
DOE Contract Number:
FG07-96ER45618
OSTI ID:
827406
Report Number(s):
EMSP-55110--1999
Country of Publication:
United States
Language:
English