Preparation of carbon fiber reinforced composite by impregnation with perhydropolysilazane followed by pressureless firing
Conference
·
· Ceramic Engineering and Science Proceedings; (United States)
OSTI ID:7292787
Filament wound carbon fiber/Si-N and carbon fiber/SiC whisker/Si-N composites with a density close to the theoretical limit (90-96 percent) were produced by using low-viscosity polysilazane with high ceramic yields as a matrix precursor. The composites showed good flexural strength at high temperatures. The use of dispersed SiC whiskers produced a flexural strength of 695 MPa. The fabrication method described here does not require high pressure in firing and has potential for a near-net-shape process. 8 refs.
- OSTI ID:
- 7292787
- Report Number(s):
- CONF-920144--
- Conference Information:
- Journal Name: Ceramic Engineering and Science Proceedings; (United States) Journal Volume: 13:9-10
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
360603 -- Materials-- Properties
CARBIDES
CARBON COMPOUNDS
CARBON FIBERS
CHEMICAL REACTIONS
COMPOSITE MATERIALS
CRYSTALS
DECOMPOSITION
DENSITY
FABRICATION
FIBERS
FLEXURAL STRENGTH
HOT WORKING
IMPREGNATION
MATERIALS
MATERIALS WORKING
MECHANICAL PROPERTIES
MONOCRYSTALS
NITRIDES
NITROGEN COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
POLYMERS
PYROLYSIS
SILICON CARBIDES
SILICON COMPOUNDS
SILICON NITRIDES
THERMOCHEMICAL PROCESSES
VISCOSITY
WHISKERS
360601* -- Other Materials-- Preparation & Manufacture
360603 -- Materials-- Properties
CARBIDES
CARBON COMPOUNDS
CARBON FIBERS
CHEMICAL REACTIONS
COMPOSITE MATERIALS
CRYSTALS
DECOMPOSITION
DENSITY
FABRICATION
FIBERS
FLEXURAL STRENGTH
HOT WORKING
IMPREGNATION
MATERIALS
MATERIALS WORKING
MECHANICAL PROPERTIES
MONOCRYSTALS
NITRIDES
NITROGEN COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
POLYMERS
PYROLYSIS
SILICON CARBIDES
SILICON COMPOUNDS
SILICON NITRIDES
THERMOCHEMICAL PROCESSES
VISCOSITY
WHISKERS