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Ceramic Matrix Composite (CMC) Structures for Vanes and Exhaust Nozzle…

Award Information

Department of Defense
Air Force
Award ID:
Program Year/Program:
2007 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Evisive, Inc.
8867 Highland Rd. Baton Rouge, LA -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2007
Title: Ceramic Matrix Composite (CMC) Structures for Vanes and Exhaust Nozzle Components
Agency / Branch: DOD / USAF
Contract: FA8650-07-M-5312
Award Amount: $97,830.00


The objective of this proposal is to demonstrate the feasibility of the application of a patented microwave scanning device as an NDE technique to be used in streamlining and optimizing the Ceramic Matrix Composite (CMC) manufacturing process. The scanning process (U.S. Patent numbers 6,359,446 and 6,653,847) utilizes microwaves as an interrogating beam to penetrate a dielectric material. This method has been used successfully in preliminary NDE studies of CMC components for jet engine vane and exhaust nozzles. This method is capable of providing a quick and accurate measurement of CMC porosity, which represents a significant time savings over the current Archimedes principle porosity measurement method. This investigation will be supported by a CMC manufacturing company (ATK) and a jet engine manufacturer (Pratt & Whitney). Currently, the parts are submerged in a liquid and the density is calculated using the weight and the change in water volume. The porosity is then determined as the ratio of the non-porous material density versus the measured density. This process is repeated multiple times during the manufacturing process, which results in multiple drying cycles for the part. Additionally, the method only measures "open" porosity and not porosity which is closed off from the surface.

Principal Investigator:

Bob Stakenborghs
Engineering Manager

Business Contact:

Jack Little
Small Business Information at Submission:

8867 Highland Rd. Baton Rouge, LA 70808

EIN/Tax ID: 201366428
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No