High-Temperature Coatings for Turbine Blades and Vanes

Award Information
Agency:
Department of Defense
Amount:
$69,949.00
Program:
STTR
Contract:
N00014-04-M-0317
Solitcitation Year:
2004
Solicitation Number:
N/A
Branch:
Navy
Award Year:
2004
Phase:
Phase I
Agency Tracking Number:
N045-001-0009
Solicitation Topic Code:
N04-T001
Small Business Information
UES, INC.
4401 Dayton-Xenia Road, Dayton, OH, 45432
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
074689217
Principal Investigator
 HeeDong Lee
 Research Scientist
 (937) 255-6535
 heedong.lee@wpafb.af.mil
Business Contact
 Francis Williams
Title: Contracts Manager
Phone: (937) 426-6900
Email: fwilliams@ues.com
Research Institution
 Univ. of Dayton Research Institute
 Robert P Boehmer
 300 College Park
Dayton, OH, 45469
 (937) 229-2919
 Domestic nonprofit research organization
Abstract
This Small Business Technology Transfer Program (STTR) Phase I project seeks to develop a new oxidation barrier for preventing oxidation of the bond-coat in current state-of-the art thermal barrier coatings (TBCs). TBCs have been applied to the hot sections of aircraft turbine engines to increase engine efficiency and to extend the life of metal components; however, they have not been fully integrated to the engine design due to the potential catastrophic failures at the interfaces where crack formation takes place. This failure is closely linked to the thermally grown oxide (TGO) layer on the bond-coats during thermal exposures. Due to this fact, current efforts are focused on developing new alloys or barrier coatings, but only minimal benefits have been achieved. We propose the development of a new oxidation barrier layer based on yttrium aluminates that react to form YAG (Y3Al5O12) to solve the oxidation problems of the bond coats. During Phase I, we will also try to deposit a single phase rare earth orthophosphate (LaPO4) in order to seek a new TBC system exhibiting a high thermal insulation efficiency as well as a high thermochemical stability.

* information listed above is at the time of submission.

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