Conductivity of molten LiF-ZrF4, NaF-ZrF4, KF-ZrF4, RbF-ZrF4, and CsF-ZrF4 systems

Electrical Conductivity of Molten Fluoride−Oxide Melts

“…The dependence of the specific conductivity of molten alkali fluorides on molar volume at constant temperature is presented in Figure . The data of different authors − show the same trend, which can be described by a logarithmic equation in V at constant temperature (eq ): ln σ = A + B V + C V 2 The coefficients A , B , and C are temperature-dependent. Thus, the specific conductivity of molten alkali fluorides can be represented by the following equation: σ = 6.67 exp true( − 1052 − 13487 V T true) exp true( 9.52 V + 276 V 2 true) in which V is the molar volume in cm 3 /mol, σ is the specific conductivity in S·cm −1 , and T is the temperature in K. Equation is valid over the temperature range from the melting point to 1400 K. Conductivity values at 1300 K calculated using eq are shown along with some experimental values in Table .…”

“…Electrical conductivities of molten alkali and alkaline-earth fluorides as functions of molar volume at 1400 K. Data for alkali fluorides were taken from ref : ▲, CsF; ○, RbF; ×, KF; ◆, NaF, △; LiF. Molar volumes of alkali fluorides were taken from ref .…”

“…Electrical conductivity of molten alkali fluorides as a function of molar volume at 1300 K: ×, Smirnov et al (ref ); ○, Katyshev and Teslyuk (ref ); ●, Janz et al (ref ). Molar volumes were taken from ref .…”

“…Correlation between (A) cation ionic potential (IP/nm −1 ) and (B) electrical conductivity (σ/S·cm −1 ) of fluoride melts near the melting point. Ionic radii in (A) were taken from ref ; corresponding values of the electrical conductivities of the molten fluorides (1000·σ/ T melting ) were taken from ref (the datum for ZrF 4 was taken from ref ).…”