SOLID-LIQUID SURFACE ENERGIES IN THE Al-CuAl_2, Al-NiAl_3 AND Al-Ti SYSTEMS

摘要

The Gibbs-Thomson coefficients and the solid-liquid surface energies in the Al-CuAl_2, Al-NiAl_3 eutectic systems and Al-Ti peritectic system have been measured by a direct method. The solid Al-solid CuAl_2 surface energy and the grain boundary energies in the Al-NiAl_3 eutectic and Al-Ti peritectic systems have been calculated from the measured grain boundary cusps. The thermal conductivity of both solid and liquid phases for the Al-6.4 wt/100 Ni and Al-0.22 wt/100 Ti alloys were also measured.