Structure and Magnetic Properties of Aerosol Nanoparticles of Fe and Its Alloys
Figure 13
Mรถssbauer spectra for FeNi massive alloy (foil) and nanoparticles. (a) FeNi (30.3%) foil; (b) FeNi (30.3%) particles with a size of โnm; singlet, ; sextet, , โT; (c) FeNi (35%) particles with a size of โnm; two oxide doublets, ; two sextets: (I) , โT; (II) , โT; (d) FeNi (35%) particles with a size of โnm heated at 900ยฐC for 30โmin followed by quenching to room temperature; singlet, S = 0.42; two oxide doublets, ; sextet, S = 0.43, โT.