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Freudenbergite: A Possible Synroc Phase for Sodium‐Bearing High‐level Waste
Author(s) -
Vance Eric R.,
Angel Paul J.,
Cassidy David J.,
Stewart Martin W. A.,
Blackford Mark G.,
McGlinn Peter A.
Publication year - 1994
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1994.tb09759.x
Subject(s) - radioactive waste , high level waste , sodium , leaching (pedology) , materials science , nuclear chemistry , municipal solid waste , chemistry , radiochemistry , metallurgy , waste management , environmental science , soil water , soil science , engineering
Earlier studies have shown that the presence of excess sodium in high‐level nuclear waste can give rise to increased leachability when the waste is incorporated in Synroc‐type titanate ceramics. Freudenbergite (Na 2 Al 2 Ti 6 O 16 ) can incorporate sodium and it exhibits satisfactory leaching resistance in water and reasonable resistance to radiation. From X‐ray diffraction studies, freudenbergite is compatible with the other phases in Synroc. Thus, Synroc containing freudenbergite as an additional phase offers potential for immobilizing sodium accompanying high‐level nuclear fuel reprocessing waste.