High-Temperature Environmental Barrier Coating for Silicon Carbide Composites

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$100,000.00
Award Year:
2009
Program:
STTR
Phase:
Phase I
Contract:
FA9550-09-C-0142
Agency Tracking Number:
F08B-T21-0125
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
MesoScribe Technologies, Inc.
25 Health Sciences Drive, Suite 125, Stony Brook, NY, 11790
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
083265558
Principal Investigator:
Brian Keyes
Project Engineer
(631) 444-6691
bkeyes@mesoscribe.com
Business Contact:
Jeffrey Brogan
CEO
(631) 444-6645
jbrogan@mesoscribe.com
Research Institution:
Stony Brook University
Susan Gasparo
Research Foundation
Office of Sponsored Programs
Stony Brook, NY, 11794
(631) 632-9029
Nonprofit college or university
Abstract
SiC/SiC fiber reinforced composites have been developed for use in gas turbine hot sections allowing for increased temperatures and therefore, increased fuel efficiency and lower emissions. A thermally-sprayed functionally-graded thermal/environmental barrier coating is proposed for SiC/SiC composites designed to provide the necessary thermal protection while shielding the SiC/SiC composite from water vapor. Stresses in the coating system are mitigated through functionally graded layers and through porosity control which allows tailoring of elastic modulus. Materials selection for the various coating layers will consider those which have demonstrated excellent thermal protection and minimal water vapor degradation. BENEFIT: SiC/SiC fiber reinforced composites have been developed with the goal of increasing combustion gas temperatures, lowering weight and extending the lifetimes of turbine components. These goals also lead to the additional benefits of reduced NOx and CO2 emissions, higher fuel efficiency, and higher thrust-to-weight ratios for aircraft. The proposed coating technology will increase the durability of ceramic composite engine components exposed to high temperature combustion environments.)

* information listed above is at the time of submission.

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