Magnetic properties of FeZr metastable phases

“…Further annealing at 773 K results in two relatively sharp sextets indicating that the remaining amorphous phases is almost completely crystallized. The hyperfine field of the second sextet is 20.5 T, which corresponds to the intermetallic phase Fe 2 Zr [27]. Thus annealing at 673 K or above results in transformation of remaining amorphous phase in Fe 2 Zr.…”

Section: Microstructural Measurementsmentioning

confidence: 97%

Iron self-diffusion in nanocrystalline FeZr thin films

Gupta

Pietsch

et al. 2004

Journal of Non-Crystalline Solids

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“…These are attributed to two distinguishable iron sites in Fe 2 Zr phase. [19] It can be pointed out that the contribution from interface could not be deconvoluted. Figure 7(h) shows the hyperfine field distribution of ribbon annealed at 858 K (585°C) which is almost similar to that of ribbon annealed at 813 K (540°C) except for the fact that the intensities of hyperfine field correspond to Fe 2 Zr phase have increased.…”

Section: Figures 1(a) and (B)mentioning

confidence: 98%

On the Structural Stability of Melt Spun Ribbons of Fe95−x Zr x B4Cu1 (x = 7 and 9) Alloys and Correlation with Their Magnetic Properties

Babu

Majumdar

Sarkar

et al. 2015

Metall Mater Trans A

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Melt spun ribbons of Fe 95Àx Zr x B 4 Cu 1 with x = 7 (Z7B4) and 9 (Z9B4) alloys have been prepared, and their structure and magnetic properties have been evaluated using XRD, DSC, TEM, VSM, and Mo¨ssbauer spectroscopy. The glass forming ability (GFA) of both alloys has been calculated theoretically using thermodynamical parameters, and Z9B4 alloy is found to possess higher GFA than that of Z7B4 alloy which is validated by XRD results. On annealing, the amorphous Z7B4 ribbon crystallizes into nanocrystalline a-Fe, whereas amorphous Z9B4 ribbon shows two-stage crystallization process, first partially to bcc solid solution which is then transformed to nanocrystalline a-Fe and Fe 2 Zr phases exhibiting bimodal distribution. A detailed phase analysis using Mo¨ssbauer spectroscopy through hyperfine field distribution of phases has been carried out to understand the crystallization behavior of Z7B4 and Z9B4 alloy ribbons. In order to understand the phase transformation behavior of Z7B4 and Z9B4 ribbons, molar Gibbs free energies of amorphous, a-Fe, and Fe 2 Zr phases have been evaluated. It is found that in case of Z7B4, a-Fe is always a stable phase, whereas Fe 2 Zr is stable at higher temperature for Z9B4.

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Magnetic properties of FeZr metastable phases

Cited by 24 publications

References 5 publications

Deposition of amorphous Fe–Zr alloys by magnetron co-sputtering

Deposition of amorphous Fe–Zr alloys by magnetron co-sputtering

Iron self-diffusion in nanocrystalline FeZr thin films

On the Structural Stability of Melt Spun Ribbons of Fe95−x Zr x B4Cu1 (x = 7 and 9) Alloys and Correlation with Their Magnetic Properties

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