Robust Environmental Barrier Coatings for Silicon Nitride

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNC05CA63C
Agency Tracking Number: 041113
Amount: $69,405.00
Phase: Phase I
Program: SBIR
Awards Year: 2005
Solitcitation Year: 2004
Solitcitation Topic Code: A2.05
Solitcitation Number: N/A
Small Business Information
UES Inc
4401 DAYTON-XENIA RD, DAYTON, OH, 45432-1894
Duns: 074689217
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Amarendra Rai
 Principal Investigator
 (937) 426-6900
 arai@ues.com
Business Contact
 Francis Williams
Title: Business Official
Phone: (937) 426-6900
Email: fwilliams@ues.com
Research Institution
N/A
Abstract
Silicon based ceramics are the leading candidates for the high temperature structural components of the advanced propulsion engines. For such applications, one key drawback of silicon based ceramics is the volatilization of the protective silica scale in engine relevant oxidizing and water vapor environments at temperatures up to 1500 degrees C. Thus for the realization of silicon based ceramic components in advanced propulsion engines, environmental and thermal protective coatings will be needed. UES, Inc. proposes to develop a multifunctional environmental barrier coating concept utilizing advanced materials, coating design and coating processing technique for low thermal expansion silicon nitride. The performance and stability of the coatings developed in this program will be determined in relevant engine environments at temperatures up to 1500 degrees C. Based upon the test results coating design and process parameters will be further refined in Phase II.

* information listed above is at the time of submission.

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