Thermophysical properties of molten tungsten measured with an electrostatic levitator
✍ Scribed by Paul-François Paradis; Takehiko Ishikawa; Ryuichi Fujii; Shinichi Yoda
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 986 KB
- Volume
- 35
- Category
- Article
- ISSN
- 1099-2871
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✦ Synopsis
Abstract
Thermophysical properties of liquid and supercooled tungsten were measured using non‐contact techniques in combination with an electrostatic levitator. Over the 3125–3707 K temperature range, the density measurements can be expressed as ρ (T) = 16.7(± 0.33)× 10^3^ − 1.08(± 0.08) (kgċ m^−3^) with T~m~ = 3695 K, leading to a volume expansion coefficient of 6.6×10^−5^ K^−1^. In addition, over the 3398–3695 K temperature range, the surface tension (γ) and viscosity (η) data can be expressed respectively as γ (T) = 2.48× 10^3^(± 75) − 0.31(± 0.08) (T − T~m~) (10^−3^ Nċ m^−1^) and η (T) = 0.11(± 0.02) exp[12.8(± 4.1) × 10^4^/(RT)] (10^−3^ Paċ s). © 2006 Wiley Periodicals, Inc. Heat Trans Asian Res, 35(2): 152–164, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/htj.20101