AlVsFe
Aluminum or Iron Substrates?
Version 5 thinsats weigh 2.5 grams per 0.025m², or 0.1kg/m². So far, we've been considering aluminum substrates. What about iron?
Assume thinsat substrates are 80% of the weight; 0.08kg/m².
|
Z |
AtW |
kg/m³ |
Ω-nm |
W/m-K |
|
Z/A |
th μm |
mΩ/□ |
K/W |
Al |
13 |
27 |
2700 |
27 |
237 |
|
6.3 |
30 |
0.9 |
140 |
Fe |
26 |
56 |
7870 |
96 |
80 |
|
12.1 |
10 |
9.6 |
1250 |
Iron? No. Although the Z²/AtW Rutherford scattering ratio is double, it is 10x more resistive electrically and thermally.