Magnetic Nanoparticles of (Co0.94Fe0.06)72.5Si12.5B15 and Fe78Si9B13 Obtained by Electric Explosion of Amorphous Wires

I.V. Beketov; R. Pérez; A.V. Bagazeev; M. Vazquez; A.I. Medvedev; А. Safronov; G.V. Kurlyandskaya

doi:10.4028/www.scientific.net/KEM.644.203

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Magnetic Nanoparticles of (Co_0.94Fe_0.06)_72.5Si_12.5B₁₅ and Fe₇₈Si₉B₁₃ Obtained by Electric Explosion of Amorphous Wires

Abstract:

Magnetic nanoparticles (MNPs) were produced by the electric explosion of wire method (EEW) using (Co_0.94Fe_0.06)_72.5Si_12.5B₁₅ and Fe₇₈Si₉B₁₃ amorphous wires. The wires were exploded in Ar atmosphere at 0.12 MPa. After the explosion the surface of all produced nanoparticles was passivated with oxygen. The produced MNPs are spherical low aggregated particles with average size below 37 nm and rather narrow size distributions with geometric standard deviation less than 1.7. Both materials are multiphase and contain up to 23 wt % of amorphous phase.