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Impermeable SiC Composites

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-08ER85147
Agency Tracking Number: N/A
Amount: $99,988.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Solicitation Year: N/A
Award Year: 2008
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
20 New England Business Center
Andover, MA 01810
United States
DUNS: 073800062
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 John Steinbeck
 (978) 689-0003
Business Contact
 David Green
Title: Dr.
Phone: (978) 689-0003
Research Institution

Next generation nuclear plants will operate with helium as the working fluid and, for highest efficiency, at temperatures approaching 1000°C. However, the steel alloys used in reactor construction lose their strength at temperatures above 850°C. SiC/SiC composite systems might be suitable candidates, but these systems generally have helium permeabilities that are too high for duct components. This project will develop a carbon-fiber-reinforced, silicon-carbide-matrix composite system that retains its strength above 1000°C and has helium permeability less than 10-9 m2/s. Nanophase materials used in the matrix will minimize porosity without sacrificing strength or high temperature performance. Commercial Applications and other Benefits as described by the awardee: The development of high temperature composite systems that are impermeable to gas flow should facilitate the incorporation of high temperature ceramic composites into next generation gas turbines. The impermeable composites also could be integrated into engine nozzle structures, enabling higher engine operation temperatures.

* Information listed above is at the time of submission. *

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