High temperature corrosion and erosion resistant electrode

Patent · Tue May 08 00:00:00 EDT 1984

OSTI ID:6338440

Young, W E; Archer, D H; Lunn, R H

High temperature corrosion and erosion resistant electrodes particularly useful for magnetohydrodynamic generators which electrodes utilize chemical ionization of combustion reactants to diffuse the current flow into the electrode. A combustible fuel, oxidant and electrically conductive material flow through porous, graded electrode components toward the plasma. Catalyzed combustion occurs near the face of the electrode exposed to the plasma which diffuses current transfer in the boundary layer and into the electrode. The reactants and combustion products thus combine simultaneously to cool the inner portions of the electrode, heat the outer portions, protect the exposed electrode surface from erosion, and alleviate the physical or chemical bonding of the by-products of coal combustion to the electrode surface which otherwise results in chemical degradation of the electrode.

• Assignee: Westinghouse Electric Corp.
• Patent Number(s): US 4447748
• OSTI ID: 6338440
• Resource Relation: Patent File Date: Filed date 27 Apr 1981; Other Information: PAT-APPL-257682
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
ELECTRODES
CORROSION RESISTANCE
DESIGN
MHD GENERATORS
BONDING
BOUNDARY LAYERS
COAL
COMBUSTION PRODUCTS
DIFFUSION
EROSION
GAS FLOW
IONIZATION
CARBONACEOUS MATERIALS
DIRECT ENERGY CONVERTERS
ENERGY SOURCES
FABRICATION
FLUID FLOW
FOSSIL FUELS
FUELS
JOINING
LAYERS
MATERIALS
300103* - MHD Generators- Materials
Components
& Auxiliaries