Wszystkie pola: Re–Fe–B alloys - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Optimization of soft magnetic properties in Fe₈₂Nb₂B₁₄RE₂ (RE = Y, Gd, Tb and Dy) group of amorphous alloys
Autorzy:: Chrobak, A.
Haneczok, G.
Zivotsky, O.
Hendrych, A.
Kansy, J.
Kotur, B.
Powiązania:: https://bibliotekanauki.pl/articles/1113556.pdf
Data publikacji:: 2016-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.07.Bc
75.50.Tt
75.60.-d
76.80.+y
Opis:: Enhancement of soft magnetic properties in the selected group of amorphous alloys was examined by different experimental methods. It was shown that permeability for annealed samples (at T_{a} for 1 h; 300 K < T_{a} < 900 K) plotted vs. T_{a} shows a maximum at which is 700, 725, 725, and 750 K for Fe₈₂Nb₂B₁₄Y₂, Fe₈₂Nb₂B₁₄Gd₂, Fe₈₂Nb₂B₁₄Tb₂ and Fe₈₂Nb₂B₁₄Dy₂ alloy, respectively. For samples after the optimization annealing permeability is at least 10 times higher than in the as-quenched state. The optimized microstructure is free of iron nanograins and corresponds to so-called relaxed amorphous phase.
Źródło:: Acta Physica Polonica A; 2016, 130, 4; 916-919
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Microstructure and magnetic properties of Nd-Fe-B-(Re, Ti) alloys
Autorzy:: Hasiak, M.
Powiązania:: https://bibliotekanauki.pl/articles/147728.pdf
Data publikacji:: 2015
Wydawca:: Instytut Chemii i Techniki Jądrowej
Opis:: The microstructure and magnetic properties of nanocomposite hard magnetic Nd-Fe-B-(Re, Ti) materials with different Nd and Fe contents are studied. The role of Re and Ti addition in phase composition and volume fraction of the Nd-Fe-B phase is determined. All samples are annealed at the same temperature of 993 K for 10 min. Mössbauer spectroscopy shows that the addition of 4 at.% of Re to the Nd8Fe78B14 alloy leads to creation of an ineligible amount of the magnetically hard Nd2Fe14B phase. Moreover, the microstructure and magnetic characteristics recorded in a wide range of temperatures for the Nd8Fe79–xB13Mx (x = 4; M = Re or Ti) alloys are also analyzed.
Źródło:: Nukleonika; 2015, 60, 1; 29-33
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Magnetic properties and surface domain structure of (Nd0.85Dy0.15)10Fe83Zr1B6 thin ribbons
Autorzy:: Ceglarek, A
Plusa, D
Dospial, M
Nabialek, M
Wieczorek, P
Powiązania:: https://bibliotekanauki.pl/articles/173512.pdf
Data publikacji:: 2013
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: nanocomposite materials
melt spinning method
Re–Fe–B alloys
hard magnetic magnets
surface domain structure
Opis:: In this paper, the nanocrystalline (Nd0.85Dy0.15)10Fe83Zr1B6 ribbons produced by melt-spinning have been investigated by the X-ray diffraction method (XRD), vibrating sample magnetometer (VSM) and magnetic force microscopy (MFM). The XRD studies showed that material investigated was mainly composed of Re2Fe14B and α-Fe phases with fine grain sizes of 25 and 9 nm, respectively. The magnetic parameters determined from the hysteresis loop measurements are as follows: μ0HC = 0.96 T, μ0MR = 0.76 T, μ0MS = 1.09 T, (BH)max = 88 kJ/m3. The large remanence ratio (μ0MR/μ0MS) of 0.7 results from the exchange coupling between the soft and hard magnetic grains. The large surface interaction domains revealed by MFM confirmed the existence of strong exchange coupling between nanosize grains.
Źródło:: Optica Applicata; 2013, 43, 1; 117-122
0078-5466
1899-7015
Pojawia się w:: Optica Applicata
Dostawca treści:: Biblioteka Nauki

Artykuł

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