Magnetic properties and stress distribution in hydrogenated FeCrB amorphous ribbons

Kovaľaková, Mária; Kollář, P.; Novák, Lajos; Ševčovič, L.

doi:10.1016/j.jmmm.2006.02.159

Cited by 4 publications

(4 citation statements)

References 5 publications

(4 reference statements)

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“…Since the studied materials exhibit high magnetostriction, the obtained theoretical results can be the base for further study of such important magnetic characteristics of the studied materials as e.g. magnetoelastic anisotropy constant [8].…”

Section: Resultsmentioning

confidence: 99%

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Hydrogen Diffusion and Strain Distribution in Amorphous Fe-Based Ribbons

Kladivová¹,

Ziman²,

Novák³

et al. 2013

Acta Electrotechnica Et Informatica

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The paper deals with the study of strain distribution in hydrogenated FeB ribbons prepared by rapid quenching from the melt. Hydrogen atoms introduced during the process of hydrogenation induce internal stresses in the sample. This causes bending of a one side hydrogenated non-fixed ribbon. The ribbon bending reflects hydrogen concentration. When the ribbon is dehydrogenated the ribbon shape is fully restored for the studied Fe 85 B 15 sample. A simple theoretical model is proposed to describe dependence of ribbon bending on the hydrogen concentration during process of hydrogenation as well as in the process of spontaneous dehydrogenation. A proposed theoretical model is in a good agreement with experimental results. Its fitting to experimental data provides important information on the local enlargement of the space around introduced hydrogen atoms.

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Section: Resultsmentioning

confidence: 99%

“…The bent sample is in equilibrium state therefore mean value of internal stress is equal to zero 0 = σ . (8) Also the mean value of r ε , as follows from Eq. (6), equals to zero, ____________________ 1 An influence of gravitational field is negligibly small and will not be taken into account.…”

Section: Fig 2 Sample With a Thickness Lmentioning

confidence: 99%

Hydrogen Diffusion and Strain Distribution in Amorphous Fe-Based Ribbons

Kladivová¹,

Ziman²,

Novák³

et al. 2013

Acta Electrotechnica Et Informatica

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“…Proposed method can be also promising in evaluation of distribution of internal stresses depending on distribution of concentration of hydrogen in the sample, evaluation of constant of anisotropy for hydrogenated sample and its influence on magnetic behavior. This method can also provide some information on the relationships between bending the samples when hydrogenated from one side and distribution of H inside the samples [8].…”

Section: Resultsmentioning

confidence: 99%

Hydrogen diffusion in amorphous FeCrB ribbons

Novák¹,

Ziman²,

Kovaľaková³

et al. 2012

Acta Electrotechnica Et Informatica

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“…were estimated from these data. The selected magnetic parameters of the studied samples, saturated magnetic polarization (J s ), measured in excitation eld of the 15 kA/m, coercivity (H C ), magnetoelastic anisotropy (K σ ), determined from area over the descending branch of hysteresis loop [3] and Curie temperature (T C ) are listed in Table I. TABLE I The selected magnetic parameters of the samples.…”

Section: Methodsmentioning

confidence: 99%