Environmentally-Robust Matrices for SiC Composites

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-09-C-0273
Agency Tracking Number: N091-011-1679
Amount: $79,955.00
Phase: Phase I
Program: SBIR
Awards Year: 2009
Solicitation Year: 2009
Solicitation Topic Code: N091-011
Solicitation Number: 2009.1
Small Business Information
1801 Maple Ave., Suite 5316, Evanston, IL, 60201
DUNS: 020126814
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: Y
Principal Investigator
 Benjamin Mangrich
 Materials Research Engine
 (847) 287-6292
Business Contact
 Sankar Sambasivan
Title: Materials Research Engine
Phone: (847) 467-5236
Email: sankar@atfinet.com
Research Institution
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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