Autor: Grabias, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Structural Investigation of Rapidly Quenched FeCoPtB Alloys
Autorzy:: Grabias, A.
Latuch, J.
Oleszak, D.
Kopcewicz, M.
Powiązania:: https://bibliotekanauki.pl/articles/1506648.pdf
Data publikacji:: 2011-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.50.Bb
75.50.Kj
76.80.+y
Opis:: Two sets of $Fe_{52-x}Co_{x}Pt_{28}B_{20}$ (x=0-26 at.%) and $Fe_{60-x}Co_{x}Pt_{25}B_{15}$ (x=0-40 at.%) alloys were prepared in the form of ribbons by the rapid quenching technique. Structure of the samples was characterized by Mössbauer spectroscopy and X-ray diffraction. In the as-quenched alloys the amorphous phase coexisted with the fcc-(Fe,Co)Pt disordered solid solution. Differential scanning calorimetry measurements performed in the range 50-720 °C revealed one or two exothermal peaks. The magnetically hard ordered $L1_{0}$ (Fe,Co)Pt and magnetically soft $(Fe,Co)_{2}B$ nanocrystalline phases were formed due to thermal treatment of the alloys. The influence of Co content on the structure of the as-quenched and heated alloys was studied.
Źródło:: Acta Physica Polonica A; 2011, 119, 1; 68-71
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Mössbauer Study of Magnetic Properties of $Fe_{80-x}Co_{x}Zr_7Si_{13}$ (x = 0-30~at.%) Boron-Free Amorphous Alloys
Autorzy:: Kopcewicz, M.
Grabias, A.
Latuch, J.
Ferenc, J.
Żuberek, R.
Nesteruk, K.
Powiązania:: https://bibliotekanauki.pl/articles/1428677.pdf
Data publikacji:: 2012-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.50.Kj
75.60.-d
76.80.+y
82.80.Ej
Opis:: Amorphous $Fe_{80-x}Co_{x}Zr_7Si_{13}$ (x = 0-30 at.%) alloys in which boron was completely replaced by silicon as a glass forming element have been prepared by melt quenching. Partial substitution of iron by cobalt caused the increase of the hyperfine field and saturation magnetization. The specialized rf-Mössbauer measurements revealed that all amorphous alloys studied are magnetically very soft. The rf-sidebands effect, related to magnetostriction, increases with the increase of Co content. In $Fe_{50}Co_{30}Zr_7Si_{13}$ sample the rf field exposure induced partial crystallization of amorphous phase that was attributed to mechanical deformations related to high frequency magnetostrictive vibrations induced by the rf field. The measurements of the hysteresis loop revealed that coercivity increases for higher Co content.
Źródło:: Acta Physica Polonica A; 2012, 121, 5-6; 1257-1260
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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