Wasteform phase assemblages and radionuclide immobilization are described for a Synroc‐D bulk composition processed at 1200°C under oxygen fugacities ( f O 2 ) ranging from air to those approximating graphite‐CO‐CO 2 buffer. All processing conditions produce assemblages of titanate and aluminate crystalline phases plus alkali aluminosilicate glass. In all cases the important radionuclides are immobilized in crystalline phases which have been shown to be highly leach‐resistant.
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Frederick J. Ryerson (1984) studied this question.
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