Abstract
Densities and surface tensions of LiF-MF3 (M: Nd, Gd, La) binary systems were measured under Ar gas by the maximum bubble pressure method. The results obtained were as follows:(1) Molar volume of the melt in the LiF-LaF3 system satisfied the additive rule on volume, while those for two other binary systems deviated positively from the additive rule near the eutectic composition.(2) Surface tensions of melts in these binary systems are deviated negatively from Guggenheim’s equation for ideal solution.(3) Assuming that the binary melts behave as the regular solution, for the LiF-LaF3 system the interaction energy ω calculated from the thermochemical data is in good agreement with that computed from the surface tension by Guggenheim’s equation. For the LiF-NdF3 system, the computed value of ω from the surface tension is three times larger than that from the thermochemical data and it is similar to that for the LiF-GdF3 system. We concluded that behavior of LaF3 is different from that of NdF3, GdF3 in LiF-MF3 (M: Nd, Gd, La) systems.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of the Japan Institute of Metals and Materials
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
