ZA-27 based metal matrix composites (MMCs) have been prepared with 1, 2, 3, and 4% of reinforcement by the compocasting method. Sample specimens of dimensions 70x10x2 mm were machined from prepared ingots. The damping behavior and dynamic Young's modulus of base alloy and the particulate reinforced composites were studied over a temperature range of 30-300 o C using a dynamic mechanical analyzer. The damping capacity of the materials was observed to increase with the increase in temperature whereas the dynamic modulus was found to decrease with the increase in temperature. The damping capacity at lower temperature may be attributed to the coefficient of thermal expansion (CTE) mismatch induced dislocations and intrinsic damping of the matrix alloy, whereas damping capacity at higher temperature may be attributed to the matrix-reinforcement interface and thermoelastic damping.