Accession Number : AD0753874
Title : Investigation of the Properties of Carbon-Carbon Composites and Their Relationship to Nondestructive Test Measurements.
Descriptive Note : Final rept. Jun 69-Jun 71,
Corporate Author : MCDONNELL DOUGLAS ASTRONAUTICS CO-WEST SANTA MONICA CALIF
Personal Author(s) : Evangelides,John S. ; Meyer,Robert A. ; Zimmer,James E.
Report Date : AUG 1971
Pagination or Media Count : 258
Abstract : 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 1/2 YARN HAS INDICATED THAT CONSIDERABLE WEIGHT LOSSES AND SHRINKAGES OCCUR UPON HEATING. The Thornel 50 and Modmor II GRAPHITE FIBERS DID NOT UNDERGO ANY SIGNIFICANT WEIGHT LOSS UNDER SIMILAR CONDITIONS. (Author, modified-PL)
Descriptors : (*COMPOSITE MATERIALS, *GRAPHITE), CARBON FIBERS, NONDESTRUCTIVE TESTING, COAL TAR, PYROLYSIS, RADIOGRAPHY, ULTRASONIC PROPERTIES, DEFECTS(MATERIALS), ANOMALIES
Subject Categories : Laminates and Composite Materials
Test Facilities, Equipment and Methods
Distribution Statement : APPROVED FOR PUBLIC RELEASE