Abstract

X-ray-computed tomography (CT), allows the analysis of the internal structure of many materials without destroying the sample. This non-destructive method can be applied to identify, lócate and characterize internal defects, study the distribution in the density of the material, verify the geometrical shape and make dimensional measurements [1,2]. One reason for the popularity of CT is its ability to examine with higher resolution and nondestructively, the interior of a structure. Ultrasonic techniques can also examine the interior of a structure, but they are limited to geometries that have a continuous ultrasonic path. In this work, we apply computed tomography to detect, at the mesoscopic scale, variations of volume fraction generated by the heterogeneous distribution of par¬ tióles, matrix and pores in Metal Matrix Composites reinforced with SiC partióles (MMCp