Accession Number : AD0473546

Title :   EVALUATION OF GRAPHITE COMPOSITES IN RE-ENTRY ENVIRONMENTS.

Descriptive Note : Final technical rept. 1 May 64-30 Jul 65,

Corporate Author : GENERAL ELECTRIC CO PHILADELPHIA PA MISSILE AND SPACE DIV

Personal Author(s) : Tanzilli, Richard A.

Report Date : OCT 1965

Pagination or Media Count : 272

Abstract : The suitability of several new graphite composites for frontal or leading edge components of re-entry vehicles has been assessed. These composites represent advances in graphite technology aimed at broadening the physical property spectrum of current state-of-the-art graphites produced by conventional processes. The assessment was accomplished by means of a three-phase program which was concerned with mass loss characterization, re-entry systems analyses, and re-entry simulation testing, respectively. In general, the fully stabilized composites were found suitable for leading edge applications; however, caution must always be used when evaluating specific vehicle designs. Several pertinent conclusions are deduced regarding the many attributes and few shortcomings of these materials and recommendations are made for continued analytical and experimental study both from a materials development and evaluation point of view. (Author)

Descriptors :   *COMPOSITE MATERIALS), (*GRAPHITE, ABLATION, ATMOSPHERE ENTRY, OXIDATION, REACTION KINETICS, THERMAL PROPERTIES, TEMPERATURE, TENSILE PROPERTIES, COMPRESSIVE PROPERTIES, SURFACE PROPERTIES, BALLISTICS, MATHEMATICAL MODELS, HYPERSONIC CHARACTERISTICS, STRESSES.

Distribution Statement : APPROVED FOR PUBLIC RELEASE