Thermophysical Properties of Molten Fe–Cu Alloy Measured Using the Electrostatic Levitation Furnace Aboard the International Space Station (ISS-ELF) under Microgravity Conditions

The thermophysical properties of molten Fe–Cu alloys, including density, surface tension, and viscosity, were measured using the electrostatic levitation furnace aboard the International Space Station (ISS-ELF) under microgravity conditions, which provided an environment that facilitated accurate measurements. The densities of the molten Fe–25at%Cu and Fe–50at%Cu alloys decreased linearly with increasing temperature, and higher copper compositions resulted in increased density. The surface tension of the molten alloys exhibited a unique up-convex temperature dependence curve that initially increased and then decreased as the temperature increased. Viscosity measurements indicated that the viscosity of the molten Fe–Cu alloys decreased with increasing temperature, following a quadratic curve, and that an increase in the copper composition resulted in lower viscosity.

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Publication Details

Journal
ISIJ International
Published
2024-11-26
DOI
https://doi.org/10.2355/isijinternational.isijint-2024-277
Citations
3
Primary Topic
Metallurgical Processes and Thermodynamics
Type
article
Field-Weighted Citation Impact
0.64

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article

Thermophysical Properties of Molten Fe–Cu Alloy Measured Using the Electrostatic Levitation Furnace Aboard the International Space Station (ISS-ELF) under Microgravity Conditions

Shumpei Ozawa, Ken‐ichi Sugioka, Shunsuke Kurosawa, Takehiko Ishikawa et al.
3 citations
ISIJ International
Metallurgical Processes and Thermodynamics
0.64
article

Thermophysical Properties of Molten Fe–Cu Alloy Measured Using the Electrostatic Levitation Furnace Aboard the International Space Station (ISS-ELF) under Microgravity Conditions

Shumpei Ozawa, Ken‐ichi Sugioka, Shunsuke Kurosawa, Takehiko Ishikawa, Suguru Shiratori, Yusaku Seimiya, Rina Shimonishi, Yūki Watanabe, Chihiro Koyama, R. Sugahara, Hidekazu Kobatake, Kazuki Tono-oka
article en
3 citations

Abstract

The thermophysical properties of molten Fe–Cu alloys, including density, surface tension, and viscosity, were measured using the electrostatic levitation furnace aboard the International Space Station (ISS-ELF) under microgravity conditions, which provided an environment that facilitated accurate measurements. The densities of the molten Fe–25at%Cu and Fe–50at%Cu alloys decreased linearly with increasing temperature, and higher copper compositions resulted in increased density. The surface tension of the molten alloys exhibited a unique up-convex temperature dependence curve that initially increased and then decreased as the temperature increased. Viscosity measurements indicated that the viscosity of the molten Fe–Cu alloys decreased with increasing temperature, following a quadratic curve, and that an increase in the copper composition resulted in lower viscosity.

ISIJ InternationalVol. 64(15)
Doshisha University (JP), Tokyo City University (JP), The Graduate University for Advanced Studies, SOKENDAI (JP), Japan Aerospace Exploration Agency (JP), Advanced Engineering Services (Japan) (JP), Institute of Space and Astronautical Science (JP), Toyama Prefectural University (JP), Chiba Institute of Technology (JP)
Japan Society for the Promotion of Science
Openalex Percentile: Top 34%
Metallurgical Processes and Thermodynamics
0.64
DOIOpen Access PDFOpenAlex
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