Microstructural and compositional evolution of core-shell FeSiAl composites during high-temperature annealing
Source abstract
Abstract
Abstract Core-shell structured magnetic composites containing a FeSiAl core and oxides shell were prepared by HNO3 oxidation. Microstructure evolution and phase composition of the insulation coatings correlated to magnetic properties have been revealed during high-temperature annealing. Results indicate that spherical nanoparticles composed of iron oxides may form on the coating surface after annealing at 700 °C followed by growing into larger wirelike particles by raising annealing temperature to 800 °C. The nucleation mechanism of the nanoparticles was presented according to the LaMer model and the growth regimes can be attributed to aggregative growth by mutual fusion. Largely enhanced magnetic properties (μe = 167.3, Pcv = 205.6 mW/cm3) have been achieved annealed at 750 °C.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metallic Glasses and Amorphous Alloys · Magnetic Properties of Alloys · Magnetic Properties and Synthesis of Ferrites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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