Evolution of the Morphology and Magnetic Properties of Flaky FeSiAl/MFeO (M = Mn, Co, Ni, Cu, Zn) Composites.

Nanosized spinel ferrites MFeO (M = Mn, Co, Ni, Cu, Zn)-coated flaky FeSiAl alloy composites were synthesized successfully. Nano-ferrites preferentially grow into nanoplatelets due to induced or restricted growth on the flaky surface of FeSiAl. With annealing temperature increasing, the ferrites' nanosheets thicken gradually and then grow into irregular particles.