CMC Structures for Exhaust Nozzle Components Based on 3-D Woven Preforms

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-07-M-5313
Agency Tracking Number: F071-105-1353
Amount: $98,185.00
Phase: Phase I
Program: SBIR
Awards Year: 2007
Solicitation Year: 2007
Solicitation Topic Code: AF071-105
Solicitation Number: 2007.1
Small Business Information
109 MacKenan Drive, Cary, NC, 27511
DUNS: 030936335
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Keith Sharp
 Senior Research Engineer
 (919) 481-2500
Business Contact
 Andrew Watson
Title: Controller/Corporate Secretary
Phone: (919) 481-2500
Research Institution
In Phase I of the proposed program we plan to demonstrate the feasibility of manufacturing bladetrack components using an approach that will result in substantial reductions in cost and cycle time compared with conventional 2-D lay-up methods. The approach involves use of a 3-D fiber preform with the shape of the final component, produced by an orthogonal weaving process developed at 3TEX, which is then infiltrated with a pressure infiltration method developed at TSC. The processing steps are amenable to a controlled manufacturing environment with minimal adjustment by hand labor. The use of 3-D woven preforms is also the most reliable method for ensuring adequate through-thickness properties, allowing process control during manufacture, and eliminating delamination as a failure mechanism during manufacture or during component service. It also eliminates the risk of processing defects due to incomplete bonding between layers or lay-up errors.

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

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