Process for the preparation of fiber-reinforced ceramic composites by chemical vapor deposition
- Knoxville, TN
A chemical vapor deposition (CVD) process for preparing fiber-reinforced ceramic composites. A specially designed apparatus provides a steep thermal gradient across the thickness of a fibrous preform. A flow of gaseous ceramic matrix material is directed into the fibrous preform at the cold surface. The deposition of the matrix occurs progressively from the hot surface of the fibrous preform toward the cold surface. Such deposition prevents the surface of the fibrous preform from becoming plugged. As a result thereof, the flow of reactant matrix gases into the uninfiltrated (undeposited) portion of the fibrous preform occurs throughout the deposition process. The progressive and continuous deposition of ceramic matrix within the fibrous preform provides for a significant reduction in process time over known chemical vapor deposition processes.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- DOE Contract Number:
- W-7405-ENG-26
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 4580524
- OSTI ID:
- 865801
- Country of Publication:
- United States
- Language:
- English
Similar Records
Fiber-reinforced ceramic composites made by chemical vapor infiltration
Fabrication of fiber reinforced ceramic composites by chemical vapor infiltration
Related Subjects
preparation
fiber-reinforced
ceramic
composites
chemical
vapor
deposition
cvd
preparing
specially
designed
apparatus
provides
steep
thermal
gradient
thickness
fibrous
preform
flow
gaseous
matrix
material
directed
cold
surface
occurs
progressively
hot
prevents
becoming
plugged
result
reactant
gases
uninfiltrated
undeposited
portion
throughout
progressive
continuous
significant
reduction
time
processes
fiber-reinforced ceramic
thermal gradient
specially designed
apparatus provides
ceramic matrix
significant reduction
ceramic composites
matrix material
ceramic composite
chemical vapor
vapor deposition
deposition process
deposition processes
reinforced ceramic
process time
/118/427/