Structure and magnetic properties of Fe100-xSnx (3.2 &lt; × &lt; 62) alloys obtained by mechanical milling

Yelsukov, E. P.; Воронина, Э. В.; Коныгин, Г. Н.; Barinov, V. A.; Godovikov, S. K.; Дорофеев, Г. А.; Zagainov, A. V.

doi:10.1016/s0304-8853(96)00537-9

Cited by 45 publications

(40 citation statements)

References 34 publications

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“…The Fe(Sn) alloy with A2 crystal structure exists only up to Ti atoms concentration with the contribution of 22.2%. Its lattice parameter increases from 2.922 ± 0.001Å (for x = 0) to 2.928 ± 0.001Å (for x = 0.25), which by comparison with the data of the Fe-Sn system reported in paper [14] can suggest that the content of Sn atoms in Fe(Sn) phase changes from 8 at.% to 10 at.%.…”

Section: Resultssupporting

confidence: 71%

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Structural and Magnetic Properties οf Fe_3-xTi_xSn Disordered Alloys

Brząkalik

2008

Acta Phys. Pol. A

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A series of Fe 3−x Ti x Sn disordered alloys (where x = 0, 0.25, 0.5, and 0.75) obtained by arc-melting were studied. Directly after the melting all samples were mechanically crashed and in that form examined by the X-ray diffraction and Mössbauer effect methods. In Fe3−xTixSn alloy with x = 0 three phases exist: FeSn (B35), FeSn 2 (C16) and Fe(Sn) (A2). The contributions of these phases decrease very fast in aid of ternary Fe-Ti-Sn alloys with the B2 and D0 3 /L2 1 types of structure, as Ti atoms concentration increases. It was shown that these ternary alloys consist of four distinct Fe-Ti-Sn phases with contributions depending on the value of the x parameter. The value of hyperfine magnetic field (B hf ) parameter at the Fe nuclei is equal to about 110 kG for FeSn and FeSn2 phases. However in alloys with A2, B2 and D0 3 /L2 1 type of structure this value changes from 0 kG to 335 kG and can be considered (in the first approximation) as a function of Fe atoms number in the nearest neighborhood.

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Section: Resultssupporting

confidence: 71%

“…The phase with B2 structure exists in Fe 3−x Ti x Sn system only when x = 0.25 and 0.5. On the basis of data from [14] it is very probable that content of Sn atoms is close to a value of about 50 at.%.…”

Section: Resultsmentioning

confidence: 99%

Structural and Magnetic Properties οf Fe_3-xTi_xSn Disordered Alloys

Brząkalik

2008

Acta Phys. Pol. A

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“…Solid solutions are formed at Fe-Co interfaces. Tetragonal FeSn 2 , with a CuAl 2 type structure, forms too during the first stage of mechanical alloying of Fe-Sn solid solutions [38][39][40]. The formation and the structure of a tetragonal stannide, CoSn 5 , prepared via a conversion chemistry route and possibly non-stoechiometric Co 1-z Sn 5 (z = 0.1-0.2), were reported only recently [41].…”

Section: Resultsmentioning

confidence: 99%

B2 long-range order in mechanically alloyed Fe53.3−0.6x Co46.7−0.4x Sn x (2 ≤ x ≤ 26) annealed at moderate temperatures

2016

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Recent interest in Fe-Co-Sn alloys stems from Heusler alloys. A Co 2 FeSnHeusler alloy is found to be unstable relative to other phases from ab initio calculations. However, it may be synthesized by non-equilibrium techniques. The present work focuses similarly on metastable ordered phases in ternary Fe-Co-Sn alloys. First, disordered phases of Sn in near-equiatomic Fe-Co are prepared by high-energy ball-milling. As-milled powders are then annealed to possibly produce long-range ordered phases. As-milled powders, of overall composition Fe 53.3-0.6x Co 46.7-0.4x Sn x (2 B x B 34), consist of a single supersaturated bcc phase for x \ *15 at.%. For larger values of x, they are primarily composed of a bcc phase, whose tin content still increases up to *26 at.%, and of extra phases, which include hexagonal (Fe,Co) 3 Sn 2 . Neutron diffraction patterns and 119 Sn Mössbauer spectra prove that bcc phases of as-milled alloys order to CsCl (B2)-type structures for x B 26 when annealed at 673 K. In addition, 119 Sn Mö ssbauer spectra reveal that a Sn content of *15 at.% marks the separation between domains with different short-range orders. From previous and present results, metastable B2 ordering of Sn-rich Co-Fe-Sn alloys is concluded to occur over a significant concentration range. temperatures below *1000 K for x ranging between *40 and *60 [1]. A perfect B2 FeCo alloy may be described as two interpenetrating simple cubic sublattices, in (0,0,0) and in (1/2,1/2,1/2), Fe on one and Co on the other. Ferromagnetism stabilizes the B2

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“…Comparing the Mo È ssbauer spectra of Fe 3 SnN with that of Fe 4 N, we can find that the Fe 3 SnN has weaker magnetism because of the substitution of diamagnetic Sn atoms. An interesting phenomenon is that the introduction of interstitial nitrogen atoms into Fe 3 Sn [15] causes a transformation from ferromagnetic alloy to paramagnetic nitride at room temperature. This is also found in nitrides and their alloys in high content nickel [16].…”

Section: Resultsmentioning

confidence: 99%