| 摘要 |
A method for vitrifying a plurality of nuclear waste kernels includes coating the kernels with a glass layer, and mixing the glass-coated kernels in a glass melt. Subsequent cooling solidifies the glass melt and vitrifies the nuclear waste kernels in bulk vitrification glass. Importantly, the glass layer has a softening temperature that is higher than the softening temperature of the glass melt. The glass layer also has a variable thermal expansion coefficient across the layer. Additionally, the glass melt has substantially the same specific gravity as the glass-coated kernels in order to effect a uniform distribution of the glass-coated kernels throughout the bulk vitrification glass.
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