Magnetic properties of mechanically alloyed Fe-Ni-Ag

Nickel supported on iron-bearing olivine for CO2 methanation

“…The hyperfine parameters of S2 could be for Fe 0 . The isomer shift is slightly positive compared to that of a-Fe and the magnetic field is larger than that of iron as a result of the presence of Ni [36], possibly in the form of NieFe alloy [46]. D1 i n t e r n a t i o n a l j o u r n a l o f h y d r o g e n e n e r g y x x x ( 2 0 Interactions between different phases in olivine and Ni/olivine As shown in the H 2 -TPR profiles in Fig.…”

Influence of wet milling conditions on the structural and magnetic properties of Ni3Fe nanocrystalline intermetallic compound

“…A drop in the M s values was observed for the powders with crystallites mean size of 8 nm which was attributed to the presence of superparamagnetic particles [19]. The hyperfine magnetic field distributions obtained by deconvoluting the Mössbauer spectra have a width which increases with milling time, revealing that the disorder degree of the alloy increases with milling time [16,18,19]. A complete conversion to a random fcc FeeNi alloy after 3 h of milling was evidenced [16].…”

“…The hyperfine magnetic field distributions obtained by deconvoluting the Mössbauer spectra have a width which increases with milling time, revealing that the disorder degree of the alloy increases with milling time [16,18,19]. A complete conversion to a random fcc FeeNi alloy after 3 h of milling was evidenced [16]. Also, it was found that the inoculation of nanocrystalline Ni 3 Fe germs to the NieFe mixture improves the synthesis of the Ni 3 Fe phase by combined mechanical alloying and annealing technique [23].…”

Mechanical alloying of the FeNi–Ag system

“…There are some reports on Fe-Ni mechanically alloyed [1][2][3][4][5][6][7][8][9] system and very limited literature on the Fe-Ni-Ag system [10]. Fe-Ag and Ni-Ag are immiscible at equilibrium and Fe-Ni shows complete solubility.…”