Magnetic Properties of FeCoWYB-based Ferromagnetic Alloys with a Small Addition of Pt

Pietrusiewicz, P.

doi:10.37358/rc.18.12.6755

Cited by 1 publication

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References 14 publications

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“…The total proportion of crystalline phases with Fe is 34% + 22% + 5% = 61%. The remaining part of the alloy, i.e., 39%, is an amorphous matrix with folding Fe 51 B 28 (rest) 21 . The calculated percentage of atoms in the identified crystalline phases is given in Table 2.…”

Section: Resultsmentioning

confidence: 99%

“…Alloys with added Pt make up an interesting group of materials, with appropriate chemical compositions for enabling the production of nanocrystalline samples. For several years, the authors have been involved in the production, and testing of the ferromagnetic properties, of classical, bulk amorphous, and nanocrystalline alloys [21][22][23][24]. As are sult of numerous literature studies, the authors have found that there are many publications on ferromagnetic materials with added Pt, the samples being produced in the form of thin layers or ribbons [25][26][27][28][29][30][31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

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Evolution of the Structural and Magnetic Properties of Bulk Fe61Co10B20W1Y8−XPtx Alloys through the Partial Substitution of Pt for Y

Pietrusiewicz

Nabiałek

2020

Materials

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This paper presents the results of an investigation into rapidly quenched Fe-based alloys with the chemical formula: Fe61Co10B20W1Y8−xPtx (where x = 3, 4, 5). In these alloys, a small quantity of Pt was added, and the Y content was reduced concurrently. Samples of the aforementioned alloys were injection-cast in the form of plates with the dimensions: 0.5 mm × 10 mm × 10 mm. The resulting structure was examined using X-ray diffractometry (XRD), Mössbauer spectroscopy and scanning electron microscopy (SEM). The results of the structural research reveal that, with a small addition of Pt, areas rich in Pt and Y are created—in which Fe-Pt and Pt-Y compounds, with different crystallographic systems, are formed. It has also been shown that an increase in Pt content, at the expense of Y, contributed to the formation of fewer crystalline phases, i.e., it allowed a material with a more homogeneous structure to be obtained. Magnetic properties of the Fe61Co10B20W1Y8−xPtx (where x = 3, 4, 5) alloy samples were tested using a vibrating sample magnetometer (VSM). The magnetic properties of the investigated materials revealed that the saturation magnetisation increased with increasing Pt content, at the expense of Y. This effect is due to the occurrence of different proportions of crystalline magnetic phases within the volume of each alloy.

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Section: Resultsmentioning

confidence: 99%