X-ray Computerized Tomography Applications to Ceramics and Composites. Phase 1

摘要

The objective of the effort was to use x-ray computerized tomography (CT) toevaluate properties of ceramics and composites, specifically fiber concentration, fiber alignment, void identification, impact damage, curing processes, and coatings. It was determined that x-ray CT can be used as a nondestructive technique to observe flaws in composite materials. Flaws observed in the investigation include fiber alignment, orientation, fiber/resin mix, and voids. X-ray CT can be used to observe impact damage in composite materials. Quantification of the extent of damage or lower resolution of flaws will require extensive development activities and calibration. When multilayered specimens of varying densities are studied, poorer resolution may preclude investigation. Contrasts in images of cured and uncured resins may make observations of curing processes a viable technique to verify models.