Use of free silicon in liquid phase sintering of silicon nitrides and sialons

Patent · Tue Nov 12 00:00:00 EST 1985

OSTI ID:865665

Raj, Rishi ^[1]; Baik, Sunggi ^[1]

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1. Ithaca, NY

This invention relates to the production of improved high density nitrogen based ceramics by liquid-phase densification of silicon nitride or a compound of silicon-nitrogen-oxygen-metal, e.g. a sialon. In the process and compositions of the invention minor amounts of finely divided silicon are employed together with the conventional liquid phase producing additives to enhance the densification of the resultant ceramic.

• Research Organization: Cornell Univ., Ithaca, NY (United States)
• DOE Contract Number: AC02-77ER04386
• Assignee: Cornell Research Foundation, Inc. (Ithaca, NY)
• Patent Number(s): US 4552711
• Application Number: 06/634,530
• OSTI ID: 865665
• Country of Publication: United States
• Language: English

Related Subjects

free
silicon
liquid
phase
sintering
nitrides
sialons
relates
production
improved
density
nitrogen
based
ceramics
liquid-phase
densification
nitride
compound
silicon-nitrogen-oxygen-metal
sialon
process
compositions
minor
amounts
finely
divided
employed
conventional
producing
additives
enhance
resultant
ceramic
based ceramics
phase sintering
minor amounts
silicon nitride
liquid phase
finely divided
minor amount
based ceramic
silicon nitrides
nitrogen based
divided silicon
conventional liquid
free silicon
nitrogen base
density nitrogen
liquid-phase densification
/264/501/