The reduction of rutile (TiO2) using aluminium results in formation of Ti(Al,O) solid solution or TixAly(O) (Ti3Al(O), TiAl(O) and Al3Ti(O)) intermetallic compounds and alumina (Al2O3) depending on the starting Al/TiO2 mole ratio. The Ti(Al,O) solid solution and TixAly(O) intermetallic compounds contain a substantial amount of dissolved oxygen (4-25at%). In this research, Ti(Al,O)/Al2O3 and TixAly(O)/Al2O3 composites have been produced by sintering Al/TiO2 composite powders with or without hipping and the mechanical properties of these materials have been studied. The density of the composites increases almost linearly with increasing sintering temperature, and it appears that the Ti(Al,O) and TixAly(O) matrices become fully sintered at temperatures above 1550degreesC, but pores are still present at the matrix/Al2O3 interfaces and inside Al2O3 particles. For a given sintering temperature, the number of pores inside the Al2O3 particles in a lower melting point matrix is higher. The hardness of the composites is high, but their bending strength is moderate and improved by hipping.