- Tytuł:
- Crystallisation of Amorphous $Y_{50}Cu_{42}Al_8$ Alloy
- Autorzy:
-
Idzikowski, B.
Śniadecki, Z.
Mielniczuk, B. - Powiązania:
- https://bibliotekanauki.pl/articles/1810410.pdf
- Data publikacji:
- 2009-01
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
61.43.Dq
61.82.Bg
81.07.Bc
81.70.Pg - Opis:
- Amorphous $Y_{50}Cu_{42}Al_8$ ribbon was prepared by melt-spinning technique on the Cu wheel. The crystallisation process was analysed by differential scanning calorimetry and X-ray diffraction. Differential scanning calorimetry curves characterising two crystallisation stages of $Y_{50}Cu_{42}Al_8$ alloy were measured in non-isothermal dynamic mode at different heating rates. Activation energies of both steps of crystallisation process were acquired by the Kissinger method and are equal to 570± 56 and 290±29 kJ/mol for the first and second stage, respectively. By annealing the ribbon at a given temperature for various times the nanocrystalline phase grains of the sizes of about 40 nm in diameter were created. The influence of the annealing temperature on the grain size evolution was also examined.
- Źródło:
-
Acta Physica Polonica A; 2009, 115, 1; 147-149
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł