Preparation of silicon carbide fibers
Abstract
Silicon carbide fibers suitable for use in the fabrication of dense, high-strength, high-toughness SiC composites or as thermal insulating materials in oxidizing environments are fabricated by a new, simplified method wherein a mixture of short-length rayon fibers and colloidal silica is homogenized in a water slurry. Water is removed from the mixture by drying in air at 120/sup 0/C and the fibers are carbonized by (pyrolysis) heating the mixture to 800 to 1000/sup 0/C in argon. The mixture is subsequently reacted at 1550 to 1900/sup 0/C in argon to yield pure ..beta..-SiC fibers.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 6705311
- Application Number:
- ON: DE84014661
- Assignee:
- Dept. of Energy
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; SILICON CARBIDES; PRODUCTION; FIBERS; PYROLYSIS; RAYON; SILICON OXIDES; CARBIDES; CARBOHYDRATES; CARBON COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; DECOMPOSITION; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; POLYSACCHARIDES; SACCHARIDES; SILICON COMPOUNDS; THERMOCHEMICAL PROCESSES; 360201* - Ceramics, Cermets, & Refractories- Preparation & Fabrication
Citation Formats
Wei, G C. Preparation of silicon carbide fibers. United States: N. p., 1983.
Web.
Wei, G C. Preparation of silicon carbide fibers. United States.
Wei, G C. Wed .
"Preparation of silicon carbide fibers". United States.
@article{osti_6705311,
title = {Preparation of silicon carbide fibers},
author = {Wei, G C},
abstractNote = {Silicon carbide fibers suitable for use in the fabrication of dense, high-strength, high-toughness SiC composites or as thermal insulating materials in oxidizing environments are fabricated by a new, simplified method wherein a mixture of short-length rayon fibers and colloidal silica is homogenized in a water slurry. Water is removed from the mixture by drying in air at 120/sup 0/C and the fibers are carbonized by (pyrolysis) heating the mixture to 800 to 1000/sup 0/C in argon. The mixture is subsequently reacted at 1550 to 1900/sup 0/C in argon to yield pure ..beta..-SiC fibers.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Oct 12 00:00:00 EDT 1983},
month = {Wed Oct 12 00:00:00 EDT 1983}
}
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