The wetting of titanium carbide (TiC 0.7 ) by liquid Al was studied using an improved sessile drop method at 1123–1323K. The initial contact angles were 77–79°, almost independent of temperature, and the final equilibrium contact angles between 17° and 12°, slightly decreasing with increasing temperature. The interfacial reaction yielded Al 4 C 3 and dissolved [Ti] in the early stage of the wetting, and then the formation of the Al 4 C 3 phase was halted by excess Ti accumulated at the interface. As a result, the wetting is essentially improved initially by the formation of the Al 4 C 3 phase and then by the adsorption of Ti at the solid–liquid interface. The role of the Ti adsorption was further demonstrated by the wetting of TiC 0.7 by an Al–1at.% Ti alloy.