Environmentally-Robust Matrices for SiC Composites

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$79,955.00
Award Year:
2009
Program:
SBIR
Phase:
Phase I
Contract:
N68335-09-C-0273
Award Id:
92376
Agency Tracking Number:
N091-011-1679
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1801 Maple Ave., Suite 5316, Evanston, IL, 60201
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
020126814
Principal Investigator:
BenjaminMangrich
Materials Research Engine
(847) 287-6292
bmangrich@atfinet.com
Business Contact:
SankarSambasivan
Materials Research Engine
(847) 467-5236
sankar@atfinet.com
Research Institute:
n/a
Abstract
Ceramic Matrix Composites (CMCs) are emerging as mission-critical materials for a broad range of defense applications and among them, their utility for next-generation aero-turbine components are currently being pursued. SiC-based CMCs are leading candidates for this application due to their high strength, low density, and superior toughness at elevated temperatures. In this Phase I project, a new matrix material is being proposed based on the concerns for the environmental durability of SiC under turbine service conditions. At elevated temperatures, degradation of SiC CMCs due to presence of oxidation, moisture, salt, and CMAS is well known. While barrier coatings deposited on exterior surfaces can mitigate the problem to a certain extent, it is becoming apparent that more robust ceramic matrices need to be developed using low-cost approaches. In this regard, recent advances with preceramic polymer-derived matrices are noteworthy. This Phase I project addresses a unique and innovative matrix material using CMC-compatible processing technique to enhance the durability of SiC CMCs in such harsh environments. Fabrication of CMC samples, exposure tests, and mechanical testing comprise the major tasks in this project. Partnership with a prime defense contractor and manufacturer of CMCs is established for this investigation to provide technical guidance.

* information listed above is at the time of submission.

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