Thermal studies have been carried out on a series of particulate (SiC
and Al2O3) reinforced 6061 Al metal matrix composites. Differential sc
anning calorimetry and dynamic mechanical analysis have provided infor
mation on the formation/dissolution of precipitate phase(s) and the ef
fect of temperature on the short-term storage modulus of the materials
, respectively. These studies were also used to identify the phase cha
nges responsible for the maximum damping properties of the materials.