Stephen K. Wilke Abdulrahman Al-Rubkhi Chihiro Koyama Takehiko Ishikawa Hirohisa Oda Brian Topper Elizabeth M. Tsekrekas Doris Möncke Oliver L. G. Alderman Vrishank Menon Jared Rafferty Emma Clark Alan L. Kastengren Chris J. Benmore Jan Ilavsky Jörg Neuefeind Shinji Kohara Michael SanSoucie Brandon Phillips Richard Weber
npj Microgravity 10(1) 2024年3月
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<...
Jannatun Nawer Takehiko Ishikawa Hirohisa Oda Chihiro Koyama Douglas M. Matson
Journal of Astronomy and Space Sciences 40(3) 93-100 2023年9月 [査読有り]
A study of uncertainty analysis was conducted on four key thermophysical properties of molten Platinum using a non-contacting levitation technique. More specifically, this work demonstrates a detailed reporting of the uncertainties associated with...
Jannatun Nawer Takehiko Ishikawa Hirohisa Oda Hideki Saruwatari Chihiro Koyama Xiao Xiao Stephan Schneider Matthias Kolbe Douglas M. Matson
npj Microgravity 9(1) 2023年5月 [査読有り]
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 expans...
Emissivity data is important for the temperature measurement using pyrometer when the sample is processed without container. A spectral emissivity measurement system combined with an electrostatic levitator was developed for high temperature melts...
In the gravity field on the earth, the phase separation with different density phases is affected by the gravitational force. Especially phase separation from fluids, for example, nucleation, solidification, and liquid-liquid or liquid-gas phase s...
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