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titleNon-contact thermophysical property measurements of refractory metals using an electrostatic levitator
Other Title静電浮揚機を用いた耐熱金属の非接触熱物理特性の測定
Author(jpn)石川 毅彦; Paradis, Paul-Francois; 伊丹 俊夫; 依田 真一
Author(eng)Ishikawa, Takehiko; Paradis, Paul-Francois; Itami, Toshio; Yoda, Shinichi
Author Affiliation(jpn)宇宙航空研究開発機構; 宇宙航空研究開発機構; 北海道大学 理学部 化学科; 宇宙航空研究開発機構
Author Affiliation(eng)Japan Aerospace Exploration Agency; Japan Aerospace Exploration Agency; Hokkaido University Department of Chemistry, Faculty of Science; Japan Aerospace Exploration Agency
Issue Date2005-03-31
PublisherJapan Aerospace Exploration Agency (JAXA)
Publication date2005-03-31
AbstractThe electrostatic levitation system, including its history and development, and techniques for non-contact thermophysical property measurements (density, surface tension, and viscosity) are reviewed. Thermophysical properties of refractory metals whose melting temperatures are over 2,000 K have been measured with an electrostatic levitator. The experimental results for vanadium, zirconium, niobium, molybdenum, rhodium, ruthenium, iridium, tantalum, rhenium, tungsten, and rhenium are presented. Comparison between theoretical calculations based on hard sphere model and measured data, as well as the necessity of microgravity conditions for this research are also discussed.
DescriptionJAXA Research and Development Report
Keywordselectrostatic levitation; refractory metal; thermophysical property; density; surface tension; microgravity; melting point; tungsten; 静電浮揚; 耐熱金属; 熱物理特性; 密度; 表面張力; 微小重力; 融点; タングステン
Document TypeTechnical Report
JAXA Category研究開発報告
Report NoJAXA-RR-04-024E

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