Structural ceramics derived from a preceramic polymer
Conference
·
· Ceramic Engineering and Science Proceedings; (USA)
OSTI ID:6152216
Test pieces were uniaxially dry-pressed from formulations consisting of 20-30 wt pct polysilazane preceramic material and SiC and Si3N4 ceramic powders. Thermal crosslinking/pyrolysis of the molded pieces at temperatures well below normal powder sintering temperatures produced fully ceramic composites consisting of fully dense, submicrometer size, crystalline ceramic particles embedded in a highly nanoporous, amorphous Si-N-C ceramic matrix material. The mechanical and physical properties, and their relationship to the microstructure, of these materials are discussed.
- OSTI ID:
- 6152216
- Report Number(s):
- CONF-900160--
- Journal Information:
- Ceramic Engineering and Science Proceedings; (USA), Journal Name: Ceramic Engineering and Science Proceedings; (USA) Vol. 11; ISSN 0196-6219; ISSN CESPD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
CARBIDES
CARBON COMPOUNDS
CERAMICS
CHEMISTRY
CRYSTAL STRUCTURE
HYDRIDES
HYDROGEN COMPOUNDS
MECHANICAL PROPERTIES
MICROSTRUCTURE
NITRIDES
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC SILICON COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
POLYMERS
SILANES
SILICON CARBIDES
SILICON COMPOUNDS
SILICON NITRIDES
SYNTHESIS
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
CARBIDES
CARBON COMPOUNDS
CERAMICS
CHEMISTRY
CRYSTAL STRUCTURE
HYDRIDES
HYDROGEN COMPOUNDS
MECHANICAL PROPERTIES
MICROSTRUCTURE
NITRIDES
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC SILICON COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
POLYMERS
SILANES
SILICON CARBIDES
SILICON COMPOUNDS
SILICON NITRIDES
SYNTHESIS