Accession Number : AD0805434

Title :   EXPERIMENTAL EVALUATION OF EXPANDED PYROLYTIC GRAPHITE FOR USE IN SPACE RADIATORS.

Descriptive Note : Quarterly progress rept. no. 3, 1 Sep-30 Nov 66,

Corporate Author : DOUGLAS AIRCRAFT CO INC SANTA MONICA CA MISSILE AND SPACE SYSTEMS DIV

Personal Author(s) : Madsen, John ; King, Peter P. ; Hiltz, Edward F. ; Allen, Robert D.

Report Date : DEC 1966

Pagination or Media Count : 39

Abstract : This report describes testing of plasma spraying of all tests specimens. Thermal cycling tests were continued with two operational problems causing a delay. Thermal aging tests are continuing with approximately 1700 hours logged to date. Mechanical testing is complete for the compression and shear tests. Further tension tests will be run to attain full material property strength. Fatigue tests are complete and damping tests are well under way. The first three panel radiator array specimen is ready for dynamic test following the damping tests. The as brazed thermal conductivity specimens have been tested. Preliminary analysis of expanded pyrolytic graphite specific weights was made relative to other candidate materials.

Descriptors :   *RADIATORS(HEATING AND COOLING)), (*PYROLYTIC GRAPHITE, MICROSTRUCTURE, STAINLESS STEEL, BRAZING, AGING(MATERIALS), COMPRESSIVE PROPERTIES, FATIGUE(MECHANICS), DAMPING, THERMAL CONDUCTIVITY, TEST METHODS, RODS, ETCHING, DIFFUSION, GRAIN BOUNDARIES, INTERFACES, BONDING, WEIGHT, TITANIUM, SPRAYS, COPPER, SILVER.

Subject Categories : Air Condition, Heating, Lighting & Ventilating

Distribution Statement : APPROVED FOR PUBLIC RELEASE