Ceramic component for electrodes

Patent · Mon Jan 01 00:00:00 EST 1979

OSTI ID:863474

Marchant, David D ^[1]

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1. Richland, WA

A ceramic component suitable for preparing MHD generator electrodes consists of HfO.sub.2 and sufficient Tb.sub.4 O.sub.7 to stabilize at least 60 volume percent of the HfO.sub.2 into the cubic structure. The ceramic component may also contain a small amount of PrO.sub.2, Yb.sub.2 O.sub.3 or a mixture of both to improve stability and electronic conductivity of the electrode. The component is highly resistant to corrosion by molten potassium seed and molten coal slag in the MHD fluid and exhibits both ionic and electronic conductivity.

• Research Organization: Battelle Memorial Institute, Columbus, OH (United States)
• DOE Contract Number: AC06-76RL01830
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4180484
• OSTI ID: 863474
• Country of Publication: United States
• Language: English

Related Subjects

ceramic
component
electrodes
suitable
preparing
mhd
generator
consists
hfo
sufficient
tb
stabilize
60
volume
percent
cubic
structure
contain
amount
mixture
improve
stability
electronic
conductivity
electrode
highly
resistant
corrosion
molten
potassium
seed
coal
slag
fluid
exhibits
ionic
potassium seed
ceramic component
volume percent
mhd generator
electronic conductivity
molten potassium
mhd fluid
cubic structure
component suitable
highly resistant
generator electrodes
preparing mhd
/252/310/501/