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Viscosity and surface tension of the Zr56.5Ti13.3Ni13.6Cu9.6S7 bulk metallic glass-forming liquid.

Authors :
Ruschel, Lucas Matthias
Kuball, Alexander
Adam, Bastian
Frey, Maximilian
Busch, Ralf
Source :
AIP Advances. Mar2024, Vol. 14 Issue 3, p1-7. 7p.
Publication Year :
2024

Abstract

The viscosity of the Zr56.5Ti13.3Ni13.6Cu9.6S7 bulk glass forming alloy was measured in equilibrium liquid at low and high temperatures. Low temperature measurements were conducted in the vicinity of the glass transition using a thermomechanical analyzer, covering a viscosity range between 109 and 1014 Pa s. The high-temperature experiments were carried out by electromagnetic levitation of a spherical droplet in microgravity during a parabolic flight campaign (TEMPUS), ranging in viscosity from 50 to 800 mPa s. The viscosities were individually modeled using the Vogel–Fulcher–Tammann equation to obtain the fragility parameter D*, which displays a strong liquid behavior of 25.8 and 19.6 for the low and high temperature region, respectively. The Mauro–Yue–Ellison–Gupta–Allan viscosity model was additionally applied, revealing an even more accurate description across the whole temperature range. Next to viscosity, TEMPUS measurements allow the determination of surface tension. With a value of 0.9 N m−1, it is significantly lower than that of other Zr-based metallic glasses without the element sulfur. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
21583226
Volume :
14
Issue :
3
Database :
Academic Search Index
Journal :
AIP Advances
Publication Type :
Academic Journal
Accession number :
176344432
Full Text :
https://doi.org/10.1063/5.0192705