Abstract Scope |
The performance of low-carbon emission and high-efficiency hybrid-electric aircraft propulsion systems is controlled through electrical components including filter inductors, transformers, and motor cores. These devices direct and store electromagnetic energy, and their operating efficiency is governed by the structure of soft magnetic alloys that couple internal electromagnetic fields. The research, presented here, includes quantifying pertinent mechanical properties in brittle Fe-based FINEMET-type ribbons for the design of a continuous strain-annealing process. During the process of strain-annealing, we aim to control magnetic coercivity, anisotropy, and relative permeability in advanced FINEMET compounds. Moreover, to reach new relative magnetic permeabilities in Fe-based alloys, we investigate the effect of field-annealing following a continuous strain-annealing process in Fe-2Nb-2Mo-1Cu-15.5Si-7B at. % melt-spun ribbons. |