Effect of Alloying Elements to Aluminium on the Wettability of AL/SiC System

Authors : Ercan CANDAN

Pages : 1-6

View : 17 | Download : 9

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The wettability at a liquid Al-alloy/SiC interface was evaluated by the sessile drop method at 750oC. The wetting angle, q ,of a sessile drop on SiC substrate decreased with the addition of Pb, Mg and Ca to pure aluminium. The reduction in q of the Al-Pb alloy was proportional to the reduction in surface tension, glv, of aluminium, whereas in Al-Mg and Al-Ca alloys the reduction in q was greater than the reduction in g lv of Al. This was attributed to reactions that took place at the Al-alloy/SiC interface. Scanning electron microcopy insert ignore into journalissuearticles values(SEM); analysis showed that severe interactions had taken place at the interfaces of Al-Mg alloy/SiC and Al-Ca alloy/SiC.
Keywords : Wetting, Sessile drop method, Surface tension, Aluminium alloys