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

Personal Author(s):

Report Date:

1968-09-10

Pagination or Media Count:

10.0

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