Rotary swaging produces bulk #nanocrystalline Cu–Al with 45 nm fibrous grains, 1016 MPa strength, and grain-growth resistance to 0.4 Tm, driven by defect-enabled chemical fluctuations & Al segregation that enhance stability and strengthening.

#OpenAccess #IJEM: doi.org/10.1088/2631...

This will accelerate even more the adoption of MagPower #SST based on concrete with magnetic aggregates from recycled #ferrites and #nanocrystalline materials. Efficiency is at the level mandated by DOE, requiring #amorphous steel that isn’t available in the required quality and quantities.

For solid-state transformers, traditionally built with #nanocrystalline or #ferrite cores, incorporating nanocrystalline particles into the concrete mix brings a massive improvement. This is evident in the loss factor vs. flux density, matching the performance of high-end powder at ≤50 kHz.