Selenide isotope generators for the Galileo Mission: SIG hermetic bimetal weld transition joint
The successful development of the commercial 6061-T651/Silver/304L explosive clad plate material as a bimetal weld transition joint material, as described herein, satisfies all SIG Galileo design requirements for hermetic weld attachment of stainless steel subassemblies to aluminum alloy generator housing or end cover structures. The application of this type weld transition joint to the hermetic attachment of stainless steel shell connectors is well-developed and tested. Based on on-going life tests of stainless steel receptacle/bimetal ring attachment assemblies and metallurgical characterization studies of this transition joint material, it appears evident that this transition joint material has more than adequate capability to meet the 250 to 300/sup 0/F and 50,000 hr. design life of the SIG/Galileo mission. Its extended life temperture capability may well approach 350 to 400/sup 0/F.
- Research Organization:
- Teledyne Energy Systems, Timonium, MD (USA)
- OSTI ID:
- 5699456
- Report Number(s):
- TES-33009-51
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
07 ISOTOPE AND RADIATION SOURCES
070301* -- Isotopic Power Supplies-- Design & Fabrication-- (-1987)
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CHALCOGENIDES
CHROMIUM ALLOYS
CONTAINERS
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DIRECT ENERGY CONVERTERS
ELECTRONIC EQUIPMENT
HEAT SOURCES
IRON ALLOYS
IRON BASE ALLOYS
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NESDPS Office of Nuclear Energy Space and Defense Power Systems
POWER SUPPLIES
RADIOISOTOPE HEAT SOURCES
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070301* -- Isotopic Power Supplies-- Design & Fabrication-- (-1987)
ALLOYS
CHALCOGENIDES
CHROMIUM ALLOYS
CONTAINERS
CORROSION RESISTANT ALLOYS
DIRECT ENERGY CONVERTERS
ELECTRONIC EQUIPMENT
HEAT SOURCES
IRON ALLOYS
IRON BASE ALLOYS
JOINTS
NESDPS Office of Nuclear Energy Space and Defense Power Systems
POWER SUPPLIES
RADIOISOTOPE HEAT SOURCES
SELENIDES
SELENIUM COMPOUNDS
SPACECRAFT POWER SUPPLIES
STAINLESS STEELS
STEELS
THERMOELECTRIC GENERATORS
WELDED JOINTS