RESISTANCE OF CERAMIC FUEL-PARTICLE COATINGS TO REACTIONS WITH OXYGEN AND GRAPHITE

Technical Report · Sun Sep 01 00:00:00 EDT 1963

OSTI ID:4630597

Pfeifer, W H; Cunningham, G W; Carmichael, D C; Hodge, E S

The compatibtlity of coated particles with various matrix materials and environments was studied using metallugraphic and x-ray techniques. Al/sub 2/O/ sub 3/-coated UO/sub 2/ particles were resistant to oxidation for several thousand hours at temperatures to 1100 deg C and BeO-coated UO/sub 2/ particles to temperatures of 1000 deg C. In flowing argon, berylliagraphite mixtures formed the most stable oxide-graphite combination, followed by mixtures of graphite with alumina, magnesia, and zirconia. The results indicated beryllia-graphite mixtures to be compartible for 10000 hr at temperatures > 140O deg C, alumina- graphite to 1350 deg C, magnesia-graphite to 950 to 1000 deg C, and zircoria- graphite to 900 to 1000 deg C. (auth)

• Research Organization: Battelle Memorial Inst., Columbus, Ohio
• DOE Contract Number: W-7405-ENG-92
• NSA Number: NSA-17-037477
• OSTI ID: 4630597
• Report Number(s): BMI-1647
• Country of Publication: United States
• Language: English

Related Subjects

ALUMINUM OXIDES
ARGON
BERYLLIUM OXIDES
CERAMICS
CHEMICAL REACTIONS
FUELS
GAS FLOW
GRAPHITE
HIGH TEMPERATURE
MAGNESIUM OXIDES
METALLOGRAPHY
METALS, CERAMICS, AND OTHER MATERIALS
MIXING
OXIDATION
STABILITY
URANIUM DIOXIDE
X RADIATION
ZIRCONIUM OXIDES