1985 Volume 49 Issue 12 Pages 1131-1137
The wettability of SiC against pure aluminium, Al-Si, Al-Mn, Al-Fe and Al-Cu alloys was measured by the method of SiC dipping into these molten metals.
It became clear that in the wetting process of SiC against these metals, the alloying elements such as silicon, manganese and iron had good effect on the wettability by decreasing the incubation period, though copper gave almost no effect. The wetting process was able to be analysed by assuming that the rate of wetting was proportional to the nuclear number formed per nuit area and to the fraction of area of SiC unwetted by molten metal. The condensed zone of alloying elements for wetting was unable to be detected at the SiC-molten metal interface through EPMA measurements.