MDDONNELL DOUGLAS ASTRONAUTICS CO-WEST SANTA MONICA CA
Factors affecting the quality and performances of carbon-carbon composites are identified and evaluated by nondestructive and destructive methods. Correlations existed between the nondestructive test response data and the physical and mechanical property measurements are determined. A number of different types of defects were intentionally introduced during the processing steps to aid in this evaluation. The characterization of the VYB 70 12 yarn has indicated that considerable weight losses and shrinkages occur upon heating. The Thornel 50 and Modmor II graphite fibers did not mdergo any significant weight loss under similar conditions.