WETTING OF CERAMIC MATERIALS BY LIQUID SILICON, ALUMINUM AND METALLIC MELTS CONTAINING TITANIUM AND OTHER REACTIVE ELEMENTS - A REVIEW

The wetting properties of ceramic materials by liquid silicon, aluminium and metallic melts containing titanium and other reactive elements are reviewed on the basis of the current understanding and recent developments in the field of metal-ceramic wetting. For silicon and aluminium, attention-is paid to the surface characteristics of both metals and ceramics, and to the effect of chemical reactions at the interfaces on the wettability. A special effort is made to analyse the Ti-induced wetting of ceramics in terms of the chemical reactivity and interface microchemistry. The importance of interactions between the interfacially active element (Ti) and other alloying elements in the metallic melts is elucidated with numerous experimental results.