Al-Cu eutectic: an experimental study of its melting properties

摘要

Equilibrium melting curves of nominally 99.9999 percent pure Al-Cu eutectic samples were realized. The end of the linear portion of the melting curves, the run-off point, was found to be (548.1608 + - 0.0007) deg C. The uncertainty is one standard deviation of the twelve measured values. Some of the samples were then doped with Si, Fe and Ag. These impurities shifted their run-off points by -0.68 m K ppm~(-1), -0.29m K ppm~(-1) and -0.17mKppm~(-1), respectively.