Search results

Sort By:

Limit search:

Crystallisation of Amorphous Y rm_{50}Cu_{42}Al_8 Alloy

100%

Idzikowski B., Śniadecki Z., Mielniczuk B.

Acta Physica Polonica A

2009

vol. 115

issue 1

147-149

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.

Refine search results

1 Acta Physica Polonica A

1 2009

1 Idzikowski B.

1 Mielniczuk B.

1 Śniadecki Z.

Search results

Crystallisation of Amorphous Y rm_{50}Cu_{42}Al_8 Alloy