Rotor Lamination
Laminated launch loop rotors will have good magnetic properties and will rapidly disperse and oxidize in the atmosphere after a rotor-release catastrophe.
Metglas 2605SA1 looks good, higher temperature than 2605HB1M.
datasheet downloaded 2017/02/11
Metglas 2605SA1 |
|
Curie temperature |
395C / 668K |
saturation induction |
1.56 Tesla |
resistivity |
1.3 μΩ-m |
thickness |
23 μm |
density |
7.18 g/m³ |
Tensile Strength |
1 GPa |
Elastic Modulus |
100 GPa |
Thermal Expansion |
7.6 ppm/°C |
Iron |
85 to 95% |
Silicon |
5 to 10% |
Boron |
1 to 5% |
60 Hz and 1.4 T |
|
Induction at 80 A/m |
≥1.35 T |
Core Loss |
≤0.17 W/kg |
Exciting Apparent Power* |
1.1 (VA/kg) |
The core loss appears proportional to (frequency × flux )² .