Using the powder metallurgy (PM) route, metal foam precursors were produced from pure aluminum, Al-1 Mg, Al-7Cu, and Al-11.5Si containing 1 wt% TiH2 as blowing agent and 8 vol% Al2O3 as stabilizer. Subsequent foaming of these precursors in an expandometer at 90 and 140 A degrees C above the melting point or the liquidus temperature of the metal produced expansion curves for each metal/Al2O3 composition. These expansion curves, as well as foaming experiments (interrupted at maximum expansion as well as 5 min after maximum expansion), were used to judge the stability of the foams produced from the different metal/Al2O3 compositions. Foam stability and wetting behavior of the same metal/Al2O3 combinations were used to evaluate the validity of contact angle measurements during idealized wetting experiments to be used to predict promising metal/stabilizing ceramic particle combinations for foam production based on the model proposed by Kaptay.