High-Temperature Amorphous Coating for CMCs for Protection against Oxygen Embrittlement

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-09-C-0213
Agency Tracking Number: N043-250-0828
Amount: $749,993.00
Phase: Phase II
Program: SBIR
Awards Year: 2009
Solicitation Year: 2004
Solicitation Topic Code: N04-250
Solicitation Number: 2004.3
Small Business Information
1801 Maple Ave., Suite 5316, Evanston, IL, 60201
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Vikram Kaul
 Materials R&D Scientist
 (847) 467-5236
Business Contact
 Sankar Sambasivan
Title: Materials R&D Scientist
Phone: (847) 287-6291
Email: sankar@atfinet.com
Research Institution
This Phase II.5 effort will further develop and mature the sealing technology relevant to JSF exhaust ceramic matrix composite (CMC) nozzle components. Significant concerns related to the poor durability of the CMC in the engine environment remain and this sealing technology, under Phase II, has demonstrated excellent capability to protect SiC-based CMCs in harsh environments. Under the Phase II.5 effort, extensive testing in close collaboration with the prime contractor and development of suitable sealing processes to accommodate the geometry and size of the full-scale nozzle component will be pursued. The primary outcome of Phase II.5 will be the implementation of Phase III program for the eventual transition of the sealing process for production. The sealing product will also enhance the reliability of the component in service which is a critical issue for the deployment of CMCs. In addition, the extended lifetime/durability provided by Cerablak™ sealing will yield notably lower lifecycle costs. In a broader perspective, this sealing technology represents a major breakthrough toward the use of these CMCs for aeroengine applications, and the Phase II.5 will progress this technology toward qualification for engine hardware.

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

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