Structural, Vibrational, and Magnetic Characterization of Orthoferrite LaFeO Ceramic Prepared by Reaction Flash Sintering.

LaFeO perovskite ceramics have been prepared via reaction flash technique using FeO and LaO as precursors. The obtained pellets have been investigated using several techniques. The formation of LaFeO has been clearly confirmed by X-ray diffraction.

Low Temperature Magnetic Transition of BiFeO Ceramics Sintered by Electric Field-Assisted Methods: Flash and Spark Plasma Sintering.

Low temperature magnetic properties of BiFeO powders sintered by flash and spark plasma sintering were studied. An anomaly observed in the magnetic measurements at 250 K proves the clear existence of a phase transition. This transformation, which becomes less well-defined as the grain sizes are reduced to nanometer scale, was described with regard to a magneto-elastic coupling.

Influence of Milling Time on the Homogeneity and Magnetism of a FeZr Partially Amorphous Alloy: Distribution of Curie Temperatures.

In this work, the mechanically alloyed FeZr (at. %) composition has been used to study the influence of milling time on its homogeneity and magnetic properties. The microstructure and Fe environment results show the formation of an almost fully amorphous alloy after 50 h of milling in a mixture of pure 70 at.