Thermophysical property measurements of liquid gadolinium by containerless methods

Thermophysical properties of liquid gadolinium were measured using non-contact diagnostic techniques with an electrostatic levitator. Over the 1585 K to 1920 K temperature range, the density can be expressed as ρ (T) = 7.41 × 10 ³ - 0.46(T - T _m)(kg m ^-3) where T _m = 1585 K, yielding a volume expansion coefficient of 6.2 × 10 ^-5 K ^-1. In addition, the surface tension data can be fitted as γ(T) = 8.22 × 10 ² - 0.097(T - T _m) (10 ^-3 N m ^-1) over the 1613K to 1803K span and the viscosity as ρ (T) = 1.7exp[1.4 × 10 ⁴/(RT)](10 ^-3 Pa s) over the same temperature range.