Method of making a continuous ceramic fiber composite hot gas filter

Patent · Fri Jan 01 00:00:00 EST 1999

OSTI ID:872166

Hill, Charles A ^[1]; Wagner, Richard A ^[1]; Komoroski, Ronald G ^[1]; Gunter, Greg A ^[1]; Barringer, Eric A ^[1]; Goettler, Richard W ^[1]

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1. Lynchburg, VA

A ceramic fiber composite structure particularly suitable for use as a hot gas cleanup ceramic fiber composite filter and method of making same from ceramic composite material has a structure which provides for increased strength and toughness in high temperature environments. The ceramic fiber composite structure or filter is made by a process in which a continuous ceramic fiber is intimately surrounded by discontinuous chopped ceramic fibers during manufacture to produce a ceramic fiber composite preform which is then bonded using various ceramic binders. The ceramic fiber composite preform is then fired to create a bond phase at the fiber contact points. Parameters such as fiber tension, spacing, and the relative proportions of the continuous ceramic fiber and chopped ceramic fibers can be varied as the continuous ceramic fiber and chopped ceramic fiber are simultaneously formed on the porous vacuum mandrel to obtain a desired distribution of the continuous ceramic fiber and the chopped ceramic fiber in the ceramic fiber composite structure or filter.

• Research Organization: MCDERMOTT TECHNOLOGY INC
• DOE Contract Number: AC21-94MC31212
• Assignee: McDermott Technology, Inc. (New Orleans, LA)
• Patent Number(s): US 5876537
• OSTI ID: 872166
• Country of Publication: United States
• Language: English

Related Subjects

method
continuous
ceramic
fiber
composite
hot
gas
filter
structure
particularly
suitable
cleanup
material
provides
increased
strength
toughness
temperature
environments
process
intimately
surrounded
discontinuous
chopped
fibers
manufacture
produce
preform
bonded
various
binders
fired
create
bond
phase
contact
parameters
tension
spacing
relative
proportions
varied
simultaneously
formed
porous
vacuum
mandrel
obtain
desired
distribution
composite preform
ceramic fibers
composite filter
gas filter
gas cleanup
ceramic composite
particularly suitable
composite structure
composite material
hot gas
ceramic fiber
fiber composite
temperature environments
temperature environment
composite mat
gas clean
increased strength
simultaneously form
/156/55/210/