Table 2 Material Parameter Table.
Parameter name | unit | Niobium hafnium alloy | SiO2 | NbSi2 | Brass |
|---|---|---|---|---|---|
Thermal conductivity | W/(m*K) | 3.810 × 101 | 1.400 | 4.184 × 101 | 4.000 × 102 |
Atmospheric heat capacity | J/(kg*K) | 3.433 × 102 | 7.300 × 102 | 4.320 × 102 | 3.850 × 102 |
Electrical conductivity | S/m | 3.000 × 106 | 0 | 5.998 × 107 | 5.998 × 107 |
Density | kg/m^3 | 8.850 × 103 | 2.200 × 103 | 5.704 × 103 | 8.960 × 103 |
Relative dielectric constant | - | 1.000 | 4.200 | 1.000 | 1.000 |
Relative permeability | - | 1.000 | 1.000 | 1.000 | 1.000 |
Young’s modulus | Pa | 1.050 | 7.000 × 1010 | 3.628 × 1010 | 1.10 × 1011 |
Poisson’s ratio | Nu | 0.400 | 0.170 | 0.180 | - |
Coefficient of thermal expansion | 1/K | 0.003 × 10–4 | 0.872 × 10–5 | 1.002 × 10–6 | - |
Surface emissivity | - | - | 0.550 | 0.400 | 0.300 |
