Table 4 Summary of input parameters for the calculation of lattice thermal conductivity of ThO2.
Parameter description | Units | Symbol | Value | Indicative Range | Ref. |
|---|---|---|---|---|---|
Grüneisen parameter | — | γ | 1.9 | — | ** |
atomic mass | u | \({{\boldsymbol{M}}}_{{\boldsymbol{at}}}\) | 264 | — | — |
grain size | µm | \({{\boldsymbol{L}}}_{{\boldsymbol{g}}}\) | 10.0 | 8–12 | * |
pore fraction | (%) | \({{\boldsymbol{v}}}_{{\boldsymbol{p}}}\) | 7 | — | * |
molar mass | kg mol−1 | \({{\boldsymbol{M}}}_{{\boldsymbol{mol}}}\) | 0.264 | — | — |
lattice parameter (298 K) | Å | \({{\boldsymbol{a}}}_{0}\) | 5.597 | — | |
density (theoretical) | kg m−3 | \({\boldsymbol{\rho }}\) | 10000 | — | — |
Bulk modulus (298 K) | GPa | K 0 | 200 | 175–230 |
