V. Cannillo er al. /Composites: Part A 37 (2006 )23-30 microscopy(Philips SEM XL40) on resin embedded images of the same composite sample was determined, in samples, polished with 0.5 um polycrystalline spray order to ensure the reliability of such analysis from a diamond, in order to detect crystals shape and type, porosity statistical point of view. and distribution of the reinforcement within the Mineralogical analysis was performed by means of a Moreover, SEM micrographs were acquired by an image X-ray powder diffractometer(Philips PW3710), with an analysis software to determine porosity, in order to support angular interval 20 between 10 and 50 with a step size of density measurements. An average on 10 microscopy 0.02(1 s per step) by using the Cu Ko. radiation 8u9 T4 T5 TREATMENT u至 TREATMENT 75.00 Fig. 2. Diameter(a)and thickness(b)shrinkage;(c)relative densitymicroscopy (Philips SEM XL40) on resin embedded samples, polished with 0.5 mm polycrystalline spray￾diamond, in order to detect crystals shape and type, porosity and distribution of the reinforcement within the composite. Moreover, SEM micrographs were acquired by an image analysis software to determine porosity, in order to support density measurements. An average on 10 microscopy images of the same composite sample was determined, in order to ensure the reliability of such analysis from a statistical point of view. Mineralogical analysis was performed by means of a X-ray powder diffractometer (Philips PW3710), with an angular interval 2q between 10 and 508 with a step size of 0.028 (1 s per step) by using the Cu Ka radiation. Fig. 2. Diameter (a) and thickness (b) shrinkage; (c) relative density. 26 V. Cannillo et al. / Composites: Part A 37 (2006) 23–30