We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Thermodynamical analysis of the glass-forming ability of bulk metallic glasses.
- Authors
Singh, P.; Dubey, K.
- Abstract
The glass-forming ability (GFA) of bulk metallic glasses (BMGs) has been analyzed on the basis of the thermodynamic parameters such as the specific heat difference Δ C between the undercooled liquid and corresponding equilibrium solid phase at the melting temperature T, entropy of fusion Δ S, and the residual entropy Δ S and characteristic temperatures, such as the Kauzmann temperature T, glass transition temperature T, and the melting temperature T. The entire study is performed by analyzing the variation of critical cooling rate R with T/ T, Δ C/Δ S, ( T − T)/ T and Δ S/Δ S for a large number of BMGs. The variation of T/ T and Δ S/Δ S with Δ C/Δ S has also been studied for BMGs. It has been found that materials having large Δ C/Δ S exhibit large T/ T and such materials require low R for the glass formation. At the same time, it has also been found that materials having large T/ T exhibit low Δ S/Δ S and such materials need a low R for the glass formation. Attempt has also been made to correlate R with T/ T, Δ C/Δ S, ( T − T)/ T and Δ S/Δ S for BMGs.
- Subjects
THERMODYNAMICS; METALLIC glasses; ENTROPY (Information theory); GLASS transition temperature; SPECIFIC heat measurement; PARAMETER estimation; CHEMICAL equilibrium
- Publication
Journal of Thermal Analysis & Calorimetry, 2012, Vol 110, Issue 3, p1443
- ISSN
1388-6150
- Publication type
Article
- DOI
10.1007/s10973-011-2106-4