Effects of substitution of Mo for Nb on less-common properties of Finemet alloys

Evolution of physical properties of amorphous Fe–Ni–Nb–B alloys with different Ni/Fe ratio upon thermal treatment

“…Moreover, the tilt was slightly reduced too. This is what could be expected, if a part of surface layer, which compresses -squeezes the ribbon interior of a positively magnetostrictive Si-poor or Si-free material is removed [12]. After 500 • C annealing, the loops in Fig.…”

Effects of grain growth blocking in annealed metalloid-poor Fe–M–Cu–B–Si ribbons (M = Nb, Mo, V)

“…This contrasts with standard metalloid-rich Finemet, where Mo works even slightly better than Nb [21,22]. The least Curie-temperature-suppressing V [10] is of no use too to keep the magnetic softness because it additionally aids the precipitation of (magnetically harder) Fe borides.…”

Application Potential of Nanocrystalline Ribbons Still Pending

“…3 shows loops of vacuum-and Ar-annealed toroidal samples compared. Similarly to the Mo-substituted Finemets [13], this FMSi13 Nb-Finemet shows clear difference albeit somewhat higher annealing temperature is necessary to get good reproducibility. The sense of the difference points to slightly stronger HRA (or transverse) anisotropy in vacuum annealed samples.…”

“…The comparison of Si-rich and Si-poor materials, not limited to just Finemets, shows the former to tilt the loop and the latter to erect the loop after the surface removal [13,14]. If the opposite response of the Si-rich Finemets actually comes from the removal of not squeezing, but spreading surfaces, then it means that MH actually can create stress of either sign.…”