DIGITAL INSIDE DENSITY PROFILE ACQUISITION METHOD OF CARBON/CARBON COMPOSITE BY A COMPUTED TOMOGRAPHY

摘要

Carbon/carbon composite has many inside voids and mechanical and thermal properties can be diminished by the inside voids. This paper describes the inside digital density profile evaluation study of the carbon/carbon materials for a missile propulsion system. The standard density specimens which consisted of known density materials are designed and manufactured. The universal curve for density to amplitude of the standard density specimens can be acquired by a computed tomography. After using this universal curve, the inside density profile of the carbon/carbon material can be plotted. To verify this result, we measured the densities of each position in the carbon/carbon by water immersion method and studied morphology of the carbon/carbon material. We can conclude that the density profile evaluation method by a computed tomography can be used for quality assurance method.