Development of Endurable Thermal Barrier Coatings for Diesel Engine Specific Heat Reduction

Award Information
Agency: Department of Defense
Branch: Army
Contract: W56HZV-05-C-0638
Agency Tracking Number: A043-250-3145
Amount: $729,992.00
Phase: Phase II
Program: SBIR
Awards Year: 2006
Solicitation Year: 2004
Solicitation Topic Code: A04-250
Solicitation Number: 2004.3
Small Business Information
2555 Technology Blvd. P.O. Box 2603, Columbus, IN, 47202
DUNS: 926141110
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: Y
Principal Investigator
 Melvin Woods
 Program Manager
 (812) 376-6472
Business Contact
 Barry Czachura
Title: VP Business Development
Phone: (812) 376-6472
Research Institution
The U. S. Army has a need for reliable and durable in-cylinder thermal barrier coatings to reduce high power density diesel engine component structural temperatures and heat rejection. Phase I program bench testing results identified thermal barrier coating topcoat systems that reduced radiant heat transfer by 40 % and improved durability by more than 100 %. Two types of topcoat systems that were identified included a plasma sprayed system and a post-treatment slurry system. Bench test results demonstrated that radiant heat reflective coatings are desirable while radiant heat absorbing coatings are not desirable. It is proposed that further development of advanced top-coated thermal barrier coating systems will proceed by continuing to optimize the substrate plasma sprayed coating and topcoat processes while using bench test coupons that simulate the actual engine components to determine coating durability performance. Specially designed thermal bench test rigs will be constructed for testing thermal barrier coatings for the piston crown, cylinder head firedeck and the engine valve face. The bench test rigs will provide transient thermal loading to approach the engine component thermal loading conditions. Demonstration of thermal barrier coating durability and insulating performance will be performed on a high powered diesel engine.

* information listed above is at the time of submission.

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