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Measurements of Density of Liquid Oxides with an Aero-Acoustic Levitator

Ushakov, Sergey V ; Niessen, Jonas ; Quirinale, Dante G ; Prieler, Robert ; Navrotsky, Alexandra ; Telle, Rainer

Materials, 2021-02, Vol.14 (4), p.822 [Periódico revisado por pares]

Switzerland: MDPI AG

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Título:
Measurements of Density of Liquid Oxides with an Aero-Acoustic Levitator
Autor: Ushakov, Sergey V ; Niessen, Jonas ; Quirinale, Dante G ; Prieler, Robert ; Navrotsky, Alexandra ; Telle, Rainer
Assuntos: Acoustic emission testing ; Acoustics ; Algorithms ; Backlights ; Calibration ; Cameras ; Computer vision ; Crystallization ; Density ; Emitters ; Experiments ; hafnia ; High temperature ; International Space Station ; Laser beam heating ; Laser beam welding ; Lasers ; levitation ; Machine vision ; MATERIALS SCIENCE ; Melt temperature ; melting ; Open source software ; rare earth oxides ; Space stations ; Thermal expansion ; Thermodynamic models ; thermodynamics ; Videography ; Vision systems ; Yttrium oxide ; zirconia
É parte de: Materials, 2021-02, Vol.14 (4), p.822
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
German Research Foundation (DFG)
National Science Foundation (NSF)
AC05-00OR22725; NSF-DMR 1835848; NSF-DMR 2015852; Te146/37-2; GZ/Inst 222/779-1 FUGG AOBJ:544260
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Descrição: Densities of liquid oxide melts with melting temperatures above 2000 °C are required to establish mixing models in the liquid state for thermodynamic modeling and advanced additive manufacturing and laser welding of ceramics. Accurate measurements of molten rare earth oxide density were recently reported from experiments with an electrostatic levitator on board the International Space Station. In this work, we present an approach to terrestrial measurements of density and thermal expansion of liquid oxides from high-speed videography using an aero-acoustic levitator with laser heating and machine vision algorithms. The following density values for liquid oxides at melting temperature were obtained: Y O 4.6 ± 0.15; Yb O 8.4 ± 0.2; Zr Y O 4.7 ± 0.2; Zr Y O 4.9 ± 0.2; HfO 8.2 ± 0.3 g/cm . The accuracy of density and thermal expansion measurements can be improved by employing backlight illumination, spectropyrometry and a multi-emitter acoustic levitator.
Editor: Switzerland: MDPI AG
Idioma: Inglês

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Measurements of Density of Liquid Oxides with an Aero-Acoustic Levitator

Ushakov, Sergey V ; Niessen, Jonas ; Quirinale, Dante G ; Prieler, Robert ; Navrotsky, Alexandra ; Telle, Rainer

Switzerland: MDPI AG

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