Surface tension and viscosity of liquid Pd43 Cu27 Ni10 P20 measured in a levitation device under microgravity

NPJ Microgravity
Markus MohrHans-Jörg Fecht

Abstract

Here we present measurements of surface tension and viscosity of the bulk glass-forming alloy Pd43Cu27Ni10P20 performed during containerless processing under reduced gravity. We applied the oscillating drop method in an electromagnetic levitation facility on board of parabolic flights. The measured viscosity exhibits a pronounced temperature dependence following an Arrhenius law over a temperature range from 1100 K to 1450 K. Together with literature values of viscosity at lower temperatures, the viscosity of Pd43Cu27Ni10P20 can be well described by a free volume model. X-ray diffraction analysis on the material retrieved after the parabolic flights confirm the glassy nature after vitrification of the bulk samples and thus the absence of crystallization during processing over a wide temperature range.

References

Jun 27, 2017·NPJ Microgravity·Yuansu LuoKonrad Samwer
May 27, 2015·NPJ Microgravity·Douglas C Hofmann, Scott N Roberts

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Citations

Jan 8, 2020·NPJ Microgravity·Patrick M McMackinAmir H Hirsa
Nov 23, 2019·NPJ Microgravity·Hongxiang JiangJiuzhou Zhao
Nov 3, 2020·Frontiers in Chemistry·Takeshi Egami, Chae Woo Ryu
Jan 3, 2021·NPJ Microgravity·Patrick M McMackinAmir H Hirsa

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Methods Mentioned

BETA
X-ray
rheometry

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