Accession Number : AD0856671

Title :   Physical Properties of Vacuum De-Oiled DC-325 Ablative Material.

Descriptive Note : Final rept.

Corporate Author : MCDONNELL CO ST LOUIS MO

Report Date : 10 SEP 1968

Pagination or Media Count : 10

Abstract : The purpose of the test was to determine the effects of vacuum de-oiling on the physical properties of DC-325 silicone elastomeric ablative material. Thermal conductivity, Shore A Hardness, size, weight, tensile strength, and elongation were the physical properties measured before and after the vacuum exposure. All physical properties showed appreciable change except thermal conductivity; however, the weight and dimensional changes were slight. (Author)

Descriptors :   *ABLATION), (*MANNED SPACECRAFT, HEAT SHIELDS), (*SPACE STATIONS, HEAT SHIELDS), (*SILICONE PLASTICS, SPACE CAPSULES, DEGASIFICATION, OILS, SILICONES, VACUUM, PHYSICAL PROPERTIES.

Subject Categories : Plastics
      Manned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE