Výsledky vyhledávání - "HIROHISA ODA"

Akademický článek

Microgravity effects on nonequilibrium melt processing of neodymium titanate: thermophysical properties, atomic structure, glass formation and crystallization

Publikováno v: npj Microgravity, Vol 10, Iss 1, Pp 1-11 (2024)

Abstract The relationships between materials processing and structure can vary between terrestrial and reduced gravity environments. As one case study, we compare the nonequilibrium melt processing of a rare-earth titanate, nominally 83TiO2-17Nd2O3,

Externí odkaz: https://doaj.org/article/32191774454c47699d22fbd763f4fcd6

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Akademický článek

Uncertainty Quantification of Thermophysical Property Measurement in Space and on Earth: A Study of Liquid Platinum Using Electrostatic Levitation

Autor: Jannatun Nawer, Takehiko Ishikawa, Hirohisa Oda, Chihiro Koyama, Douglas M. Matson

Publikováno v: Journal of Astronomy and Space Sciences, Vol 40, Iss 3, Pp 93-100 (2023)

A study of uncertainty analysis was conducted on four key thermophysical properties of molten Platinum using a noncontacting levitation technique. More specifically, this work demonstrates a detailed reporting of the uncertainties associated with t

Externí odkaz: https://doaj.org/article/013ca4c9ab844d8e9dd03550f77bb093

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Akademický článek

Uncertainty analysis and performance evaluation of thermophysical property measurement of liquid Au in microgravity

Autor: Jannatun Nawer, Takehiko Ishikawa, Hirohisa Oda, Hideki Saruwatari, Chihiro Koyama, Xiao Xiao, Stephan Schneider, Matthias Kolbe, Douglas M. Matson

Publikováno v: npj Microgravity, Vol 9, Iss 1, Pp 1-9 (2023)

Abstract A new method for quantifying facility performance has been discussed in this study that encompasses uncertainties associated with thermophysical property measurement. Four key thermophysical properties: density, volumetric thermal expansion

Externí odkaz: https://doaj.org/article/4ab5c76c575c44599c07fa5a56deefca

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Akademický článek

Densities of Liquid Tm2O3, Yb2O3, and Lu2O3 Measured by an Electrostatic Levitation Furnace Onboard the International Space Station

Autor: Takehiko Ishikawa, Chihiro Koyama, Hirohisa Oda, Rina Shimonishi, Tsuyoshi Ito, Paul-François Paradis

Publikováno v: Metals, Vol 12, Iss 7, p 1126 (2022)

Liquid densities of three lanthanoid sesquioxides (Tm2O3, Yb2O3, and Lu2O3), whose melting temperatures are above 2400 °C, were measured using an electrostatic levitation furnace onboard the International Space Station (ISS). Each sample was positiv

Externí odkaz: https://doaj.org/article/30663a28146d406e96251591e3baaf3e

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Akademický článek

Determining the density of molten Y203 using an electrostatic levitation furnace in the International Space Station.

Autor: HIROHISA ODA¹ oda.hirohisa@jaxa.jp, RINA SHIMONISHI¹, CHIHIRO KOYAMA¹, TSUYOSHI ITO¹, TAKEHIKO ISHIKAWA¹

Publikováno v: High Temperatures - High Pressures. 2023, Vol. 52 Issue 3/4, p341-350. 10p.

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