Non-contact thermophysical property measurements of refractory metals using an electrostatic levitator
Non-contact thermophysical property measurements of refractory metals using an electrostatic levitator
复制标题
DOI：
10.1088/0957-0233/16/2/016
复制
发表时间：
2005-02-01
影响因子：
2.4
通讯作者：
Yoda, S
中科院分区：
文献类型：
--
作者：
Ishikawa, T;Paradis, PF;Yoda, S
本文综述了静电悬浮系统的发展历史，介绍了非接触式热物性测量技术（密度、等压热容与半球总发射率之比、表面张力和粘度）。用静电悬浮器测量了熔点在2000 K以上的难熔金属的热物理性质。给出了钒、锆、铌、钼、铑、钌、铱、钽和铌的实验结果。文中还讨论了硬球模型理论计算与实测数据的比较，以及微重力条件对研究的必要性。
The electrostatic levitation system, including its history and development, and techniques for non-contact thermophysical property measurements (density, ratio of isobaric heat capacity to hemispherical total emissivity, surface tension and viscosity) are reviewed. Thermophysical properties of refractory metals whose melting temperatures are over 2000 K have been measured with an electrostatic levitator. The experimental results for vanadium, zirconium, niobium, molybdenum, rhodium, ruthenium, iridium, tantalum 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 is also discussed.