High-Temperature Amorphous Coating for CMCs for Protection against Hot Corrosion

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$749,954.00
Award Year:
2006
Program:
SBIR
Phase:
Phase II
Contract:
N68335-06-C-0173
Award Id:
70328
Agency Tracking Number:
N043-250-0828
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:
SankarSambasivan
President & CEO
(847) 467-5282
sankar@atfinet.com
Business Contact:
JohnRechner
Manager, Contracts and En
(847) 467-5235
jrechner@atfinet.com
Research Institute:
n/a
Abstract
Ceramic matrix composites (CMCs) are being targeted for many military and commercial applications due to their lightweight and high temperature stability. CMCs possess high strength, and are being investigated for use in next-generation aircraft engines. CMCs show great promise for this application, but are subject to degradation from hot corrosion, a process in which atmospheric salts combine with engine exhaust, and can react with CMC materials at high temperatures. Hot corrosion may be a limiting factor in implementing CMCs in aircraft engines, and protection schemes are required. A thermally stable amorphous aluminum phosphate material was investigated in Phase I as a coating on non-oxide CMCs to promote resistance to hot corrosion. The coating material is a low cost, solution derived material which has a unique glass structure that is resistant to crystallization even at elevated temperatures, and has demonstrated resistance to sodium sulfate at elevated temperatures. In this Phase II project, ATFI will work with our industrial partners to build on Phase I results with the objective to develop a prototype part and explore preliminary considerations for technology transition. Effectiveness at reducing damage from hot corrosion as well as impact on mechanical properties of the CMC will be studied.

* information listed above is at the time of submission.

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