Thermodynamic, kinetic and structural aspects of the formation of nanocrystalline phases in Fe73.5−xNixCu1Nb3Si13.5B9 alloys

Duhaj, P.; Švec, P.; Sitek, J.; Janičkovič, D.

doi:10.1016/s0921-5093(00)01461-1

Cited by 32 publications

(16 citation statements)

References 13 publications

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“…Moreover, a low-field sextet (B ≈ 4 ÷ 8 T) as well as a paramagnetic doublet arise above x = 30; they are attributed to small amount of Fe-Ni invar phase. The results are qualitatively consistent with X-ray outcomes reported in [8].…”

Section: Hyperfine Fields Of Annealed Alloyssupporting

confidence: 90%

“…It is comprised in the range 16 ÷ 63%, grows with the annealing temperature and depends irregularly on nickel concentration. This testifies modification of crystallization temperature by nickel content and allows expecting diverse crystalline phases, in accordance with the results of calorimetric studies [3,8]. It was found that the discrete subspectrum is multicomponent and a set of sextets with hyperfine parameters characteristic of Fe(Si) solid solution is present up to x = 40 (and dominates in the compositional range x = 10 ÷ 30), in contrast with classical FINEMET, where DO 3 -type structure is mainly created.…”

Section: Hyperfine Fields Of Annealed Alloyssupporting

confidence: 82%

“…Besides, many characteristics like hyperfine parameters of crystalline component can be analyzed independently on this feature. Therefore, as in many papers (for example, [8]), the common value of annealing temperature for all the amorphous alloys was used in this study.…”

Section: Hyperfine Fields Of Annealed Alloysmentioning

confidence: 99%

“…The influence of Ni on the kinetics of the phase transformations and macroscopic magnetic characteristics was reported in [8] and [3,6,9], respectively. Whereas the small addition of nickel (up to 1 at.%) was found to improve soft magnetic properties, the further substitution of iron by nickel caused worsening of them.…”

Section: Introductionmentioning

confidence: 99%

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Changes in structure and magnetic hyperfine fields of Finemet alloys, induced by transition elements substitution

et al. 2008

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Amorphous as well as two-phase nanocrystalline Finemet-type soft magnetic alloys substituted by transition elements (Ni, Co, V) have been studied by means of Mössbauer spectroscopy. The main subject of interest was the distribution of magnetic hyperfine field (MHF) in Ni substituted alloys. The increase of mean MHF was stated as a result of crystallization. It was found that changes of transition metal concentration cause different kind of hyperfine field evolution, attributed both to the alteration in grain structure and other effects related to crystallization processes.

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Section: Hyperfine Fields Of Annealed Alloyssupporting

confidence: 90%

Section: Hyperfine Fields Of Annealed Alloyssupporting

confidence: 82%

Section: Hyperfine Fields Of Annealed Alloysmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Changes in structure and magnetic hyperfine fields of Finemet alloys, induced by transition elements substitution

et al. 2008

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“…There have been numerous investigations of the Fe 73.5 Si 13.5 B 9 Nb 3 Cu 1 alloy by means of XRD, TEM, DSC, Mossbauer spectroscopy, APFIM, EXAFS and other methods [2,[4][5][6][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24], however no study of the concentration profile of Cu and Nb by EDX measurement in the vicinity of the nanocrystal has been reported. Hence, EDX and HREM were utilized to measure the concentration profile in the vicinity of the nanocrystal in order to understand the mechanism of nanostructure formation.…”

mentioning

confidence: 99%