Research Article
Current Status of Pyroprocessing Development at KAERI
Table 2
Some properties of two wasteforms.
| | Property | SAP wasteform | ZIT wasteform |
| | Radionuclide leach rate, g/m2 day | 10−4~10−3 for Cs/Sr | <10−5 for rare earth | | Wasteform leach rate, g/m2 day | 10−2 | 10−3 | | Density, g/cm3 | 2.35~2.40 | 3.7~4.2 | | Thermal conductivity, W/mK | 1.1~1.4 | 1.7 | | Thermal capacity, J/gK | 0.96~1.07 | 0.65 | | Glass transition temperature, K | 753~800 | — | | Thermal expansion coefficient, K−1 | 3.0 × 10−6 | | | Microhardness, GPa | 4.76 ± 0.15 | 5.5 |
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