DENSIFIED SILICON NITRIDE CERAMICS AND THEIR PRODUCTION

Silicon nitride ceramics are produced by subjecting a silicon nitride preform composed of an intimate mixture of crystalline silicon nitride and an amorphous Si-N or Si-N-C or Si-C phase to rapid omnidirectional compaction. The preform used in this process may be formed by pyrolyzing in nitrogen or...

Full description

Saved in:
Bibliographic Details
Main Author ROGERS, JOHN JOSEPH
Format Patent
LanguageEnglish
Published 03.10.1990
Edition4
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
Online AccessGet full text

Cover

More Information
Summary:Silicon nitride ceramics are produced by subjecting a silicon nitride preform composed of an intimate mixture of crystalline silicon nitride and an amorphous Si-N or Si-N-C or Si-C phase to rapid omnidirectional compaction. The preform used in this process may be formed by pyrolyzing in nitrogen or ammonia, a molded part made from an intimate mixture of finely divided silicon nitride powder and a finely divided preceramic organosilicon polymeric binder, preferably a polycarbosilane or polycarbosiloxane, most preferably an organopolysilazane.
Bibliography:Application Number: EP19890304567