Chemical vapor infiltration of fiber-reinforced ceramic composites

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:6040755

Stinton, D P; Caputo, A J; Lowden, R A; Besmann, T M

A process has been developed for the fabrication of fiber-reinforced SiC composites by chemical vapor infiltration. Infiltration times for the low-density fibrous structures were reduced significantly from previous processes by simultaneously utilizing a thermal gradient and forced gas flow. Uniform matrix deposition occurred throughout unidirectional-fiber, cloth, or random chopped-fiber preforms to produce composites with densities approaching 90% of theoretical. Fabrication of composites in this fashion produced specimens with high flexural strengths and with a strain at maximum load which significantly exceeded those of conventional SiC bodies.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6040755
• Report Number(s): CONF-860413-1; ON: DE86009513
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360301* -- Composite Materials-- Preparation & Fabrication-- (-1987)
CARBIDES
CARBON COMPOUNDS
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
COMPOSITE MATERIALS
DEPOSITION
FABRICATION
FIBERS
MATERIALS
MATRIX MATERIALS
REINFORCED MATERIALS
SILICON CARBIDES
SILICON COMPOUNDS
SURFACE COATING