STTR Phase I: Demonstration of Enhanced Corrosion Resistance using a Nano-composite Thermal Barrier Coating

Award Information
Agency: National Science Foundation
Branch: N/A
Contract: 0637297
Agency Tracking Number: 0637297
Amount: $149,977.00
Phase: Phase I
Program: STTR
Awards Year: 2007
Solicitation Year: 2006
Solicitation Topic Code: AM
Solicitation Number: NSF 06-553
Small Business Information
200 Yellow Place, 6745 HOLLISTER AVENUE, Rockledge, FL, 32955
DUNS: 175302579
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Michael Cutbirth
 (321) 631-3550
Business Contact
 Robert Scaringe
Title: PhD
Phone: (321) 631-3550
Research Institution
 Randy L VanderWal
 10211 Wincopin Circle
Columbia, MD, 21044 3432
 (216) 433-9064
 Federally funded R&D center (FFRDC)
This Small Business Technology Transfer (STTR) Phase I project will experimentally validate the theory that inclusion of nanostructures within the Thermal Barrier Coatings (TBC) will enhance the resistance to hot corrosion by increasing the fracture strength of the ceramic thereby inhibiting grain growth similar to reinforcing concrete with rebar. The grain growth leads to the formation and growth of interconnected cracks needed for wicking of molten salts that result in spallation. The novel nanocomposite coating would find application within fossil energy power generation devices (dirty fuel) and aircraft engines (marine environments). Current technology turbine blades are comprised of single crystal nickel superalloys. Historically, protective TBC have allowed for operation of the turbine while subjected to hot gases exiting the combustor at temperatures exceeding the superalloy melting point. The increase in turbine inlet temperature has yielded improvements in efficiency, power density, and emission quality. However, these protective barriers are susceptible to hot corrosion, an electrochemical reaction between the superalloy and molten salts resulting in spallation or fragmentation of the thermal barrier coating. The reduction of premature spalling will allow for the simultaneous increase of the turbine inlet temperature and the reduction of the turbine coolant air. This combination has the potential to increase efficiency, reduce toxic emissions, and save capital costs.

* Information listed above is at the time of submission. *

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