Dependence of the Melting Temperature on Pressure up to 2000 bar in Uranium Dioxide, Tungsten Graphite
The melting point of uranium dioxide, tungsten and graphite was measured as a function of the isostatic pressure up to 2000 bar, in a laser-heated autoclave filled with inert gas. The measured melting curves and their slopes were compared with the predictions obtained from the Clausius-Clapeyron equation and the existing thermochemical data of these substances. Whilst for tungsten and graphite the results show a reasonable agreement with the equilibrium thermodynamic calculation, the melting point of UO(2) increases with pressure with a slope more than three times larger than expected.
Bibliographic Reference: Article: International Journal of Thermophysics, 1998
Record Number: 199910220 / Last updated on: 1999-03-12
Original language: en
Available languages: en