利用国际空间站的静电悬浮炉测定熔融Y2O3的密度

IF 1.1 4区工程技术 Q4 Engineering

High Temperatures-high Pressures Pub Date : 2023-01-01 DOI:10.32908/hthp.v52.1375

H. Oda, Rina Shimonishi, Chihiro Koyama, Tsuyoshi Ito, T. Ishikawa

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引用次数: 1

摘要

这项工作采用了安装在国际空间站KIBO日本实验舱的静电悬浮炉(ELF)设备。ELF能够在没有容器的情况下悬浮高熔点材料，如陶瓷。在这个设备中，耐火氧化物的加热和熔化允许分析各种热物理性质，包括密度、表面张力和粘度，否则在地面实验室中很难测量。在本研究中，利用极低频光谱在较宽的温度范围内测定了熔融Y2O3的密度。在2712 K下获得的密度为4700 kg/m3，与先前使用气动声学悬浮器获得的值非常吻合。确定了离子半径与液体Y2O3摩尔体积之间的关系，并发现与其他非玻璃形成的倍半氧化物相似。

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Determining the density of molten Y2O3 using an electrostatic levitation furnace in the International Space Station

This work employed the electrostatic levitation furnace (ELF) apparatus installed in the KIBO Japanese Experiment Module on the International Space Station. The ELF is able to levitate high-melting-point materials such as ceramics without containers. The heating and melting of refractory oxides in this apparatus allows the analysis of various thermophysical properties, including density, surface tension and viscosity, that are otherwise very difficult to measure in terrestrial laboratories. In the present study, the density of molten Y2O3 was determined over a wide temperature range using the ELF. A density of 4700 kg/m3 was obtained at 2712 K, in good agreement with the value previously obtained using an aero-acoustic levitator. The relationship between the ionic radius and the molar volume of liquid Y2O3 was ascertained and found to be similar to those for other non-glass-forming sesquioxides.

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来源期刊

High Temperatures-high Pressures THERMODYNAMICS-MECHANICS

CiteScore

1.00

自引率

9.10%

发文量

期刊介绍： High Temperatures – High Pressures (HTHP) is an international journal publishing original peer-reviewed papers devoted to experimental and theoretical studies on thermophysical properties of matter, as well as experimental and modelling solutions for applications where control of thermophysical properties is critical, e.g. additive manufacturing. These studies deal with thermodynamic, thermal, and mechanical behaviour of materials, including transport and radiative properties. The journal provides a platform for disseminating knowledge of thermophysical properties, their measurement, their applications, equipment and techniques. HTHP covers the thermophysical properties of gases, liquids, and solids at all temperatures and under all physical conditions, with special emphasis on matter and applications under extreme conditions, e.g. high temperatures and high pressures. Additionally, HTHP publishes authoritative reviews of advances in thermophysics research, critical compilations of existing data, new technology, and industrial applications, plus book reviews.