Selenide isotope generator for the Galileo Mission: SIG thermal insulation evaluaion tests

Technical Report · Fri Jun 01 00:00:00 EDT 1979

DOI:https://doi.org/10.2172/5600007· OSTI ID:5600007

Since the SIG program required the use of very high performance thermal insulation materials in rather severe thermal and environmental conditions, a thorough screening and testing program was performed. Several types of materials were included in the preliminary survey. Most promising were oxide and carbonaceous fibrous insulations, oxide and carbonaceous foamed materials, and multilayer materials with both powder and cloth spacers. The latter were only viable for the vacuum option. In all, over one hundred materials from more than sixty manufacturers were evaluated from literature and manufacturers' data. The list was pared to eighteen candidates in seven basic types, i.e., fibrous microporous SiO/sub 2/, fibrous SiO/sub 2//Al/sub 2/O/sub 3/, fibrous ZrO/sub 2/, fibrous carbon, foamed SiO/sub 2/, foamed carbon, and multilayer. Test results are presented.

• Research Organization: Teledyne Energy Systems, Timonium, MD (USA)
• DOE Contract Number: ET-78-C-01-2865
• OSTI ID: 5600007
• Report Number(s): TES-33009-50; TRN: 80-002406
• Country of Publication: United States
• Language: English

Related Subjects

07 ISOTOPES AND RADIATION SOURCES
THERMOELECTRIC GENERATORS
THERMAL INSULATION
COMPRESSION STRENGTH
EXPERIMENTAL DATA
GRAPHS
PERFORMANCE TESTING
RADIOISOTOPE HEAT SOURCES
SELENIDES
SPACECRAFT POWER SUPPLIES
TABLES
THERMAL CONDUCTIVITY
CHALCOGENIDES
DATA
DATA FORMS
DIRECT ENERGY CONVERTERS
ELECTRONIC EQUIPMENT
HEAT SOURCES
INFORMATION
MECHANICAL PROPERTIES
NUMERICAL DATA
PHYSICAL PROPERTIES
POWER SUPPLIES
SELENIUM COMPOUNDS
TESTING
THERMODYNAMIC PROPERTIES
NESDPS Office of Nuclear Energy Space and Defense Power Systems
070301* - Isotopic Power Supplies- Design & Fabrication- (-1987)