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US 4,229,322 AGranted
Ceramic component for electrodes
AssigneeThe United States of America as represented by the United States Department of Energy
InventorsDavid D. Marchant, J. Lambert Bates
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Abstract
A ceramic component suitable for preparing MHD generator electrodes having the compositional formula: Y.sub.x (Mg.sub.y Cr.sub.z).sub.w Al.sub.(1-w) O.sub.3 where x=0.9 to 1.05, y=0.02 to 0.2, z=0.8 to 1.05 and w=1.0 to 0.5. The component is resistant to the formation of hydration products in an MHD environment, has good electrical conductivity and exhibits a lower electrochemical corrosion rate than do comparable compositions of lanthanum chromite.
Claims2
A ceramic component for an MHD generator electrode having the formula:
- Y.sub.x (Mg.sub.y Cr.sub.z).sub.w Al.sub.(1-w) O.sub.3
- where
- x=0.9 to 1.05,
- y=0.02 to 0.2,
- z=0.8 to 1.05 and
- w=1.0 to 0.5.
3 more elements
Dependencies are inferred from the claim text.