Applying a tapered electrode on a porous ceramic support tube by masking a band inside the tube and drawing in electrode material from the outside of the tube by suction

Patent · Tue Jan 01 00:00:00 EST 1991

OSTI ID:868092

Vasilow, Theodore R ^[1]; Zymboly, Gregory E ^[2]

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1. Penn Township, Westmoreland County, PA
2. Murrysville, PA

An electrode is deposited on a support by providing a porous ceramic support tube (10) having an open end (14) and closed end (16); masking at least one circumferential interior band (18 and 18') inside the tube; evacuating air from the tube by an evacuation system (30), to provide a permeability gradient between the masked part (18 and 18') and unmasked part (20) of the tube; applying a liquid dispersion of solid electrode particles to the outside surface of the support tube, where liquid flows through the wall, forming a uniform coating (42) over the unmasked support part (20) and a tapered coating over the masked part (18 and 18').

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
• DOE Contract Number: AC21-80ET17089
• Assignee: Westinghouse Electric Corp. (Pittsburgh, PA)
• Patent Number(s): US 5073405
• OSTI ID: 868092
• Country of Publication: United States
• Language: English

Related Subjects

applying
tapered
electrode
porous
ceramic
support
tube
masking
band
inside
drawing
material
outside
suction
deposited
providing
10
14
closed
16
circumferential
interior
18
evacuating
air
evacuation
30
provide
permeability
gradient
masked
unmasked
20
liquid
dispersion
solid
particles
surface
flows
wall
forming
uniform
coating
42
solid electrode
uniform coating
support tube
liquid flow
outside surface
ceramic support
electrode material
porous ceramic
electrode particles
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