Developments in electrochemical oxygen meter probes for use in liquid sodium

Journal Article · Tue Jun 01 04:00:00 EDT 1982 · Nucl. Technol.; (United States)

OSTI ID:6767860

Barton, G B; Keough, R F; McCown, J J; Yount, J A

A program was carried out to develop small less fragile ceramic electrodes for use in measuring oxygen in sodium. To use the electrodes as inserts in existing sampler hardware, composite metal-ceramic tubes were required. Four configurations of composite metal-ceramic probes employing yttria-doped thoria as the solid electrolyte were fabricated and tested. These incorporated both mechanical and brazed seals between the metal and ceramic. The most useful for fast flux test facility applications utilized a brazed seal between the ceramic and an alloy of matching coefficient of thermal expansion. A number of alternate reference systems were also investigated. Reference electrodes tested included Na-Na/sub 2/O, In-In/sub 2/O/sub 3/, Ni-NiO, and Ag-air.

• Research Organization: Hanford Engineering Development Laboratory P.O. Box 1970, Richland, Washington 99352
• OSTI ID: 6767860
• Journal Information: Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 57:3; ISSN NUTYB
• Country of Publication: United States
• Language: English

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ACTINIDE COMPOUNDS
AIR
ALKALI METAL COMPOUNDS
ALKALI METALS
ALLOYS
ARGON
BRAZED JOINTS
CERAMICS
CHALCOGENIDES
CHEMICAL ANALYSIS
COMPARATIVE EVALUATIONS
COMPOSITE MATERIALS
DISSOLVED GASES
DOPED MATERIALS
ELECTRODES
ELECTROLYTES
ELEMENTS
EPITHERMAL REACTORS
EXPANSION
FABRICATION
FAST REACTORS
FFTF REACTOR
FLUIDS
GASES
INDIUM
INDIUM COMPOUNDS
INDIUM OXIDES
JOINTS
LIQUID METAL COOLED REACTORS
MATERIALS
MEASURING INSTRUMENTS
METALS
METERS
NICKEL
NICKEL COMPOUNDS
NICKEL OXIDES
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
OXYGEN METERS
PERFORMANCE TESTING
QUANTITY RATIO
RARE GASES
REACTOR INSTRUMENTATION
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
SEALS
SODIUM
SODIUM COMPOUNDS
SODIUM COOLED REACTORS
SODIUM OXIDES
SOLID ELECTROLYTES
SOLUTES
TEST REACTORS
TESTING
THERMAL EXPANSION
THORIUM COMPOUNDS
THORIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
WELDED JOINTS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES