Hybird 3-D Textile Gradient Density and Fluted Preforms for C-SiC Structural TPS

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9453-04-M-0124
Agency Tracking Number: F041-033-1229
Amount: $99,941.00
Phase: Phase I
Program: SBIR
Awards Year: 2004
Solitcitation Year: 2004
Solitcitation Topic Code: AF04-033
Solitcitation Number: 2004.1
Small Business Information
109 MacKenan Drive, Cary, NC, 27511
Duns: 030936335
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Donald Wigent
 (919) 481-2500
Business Contact
 Andrew Watson
Title: Controller/ Corp Secretary
Phone: (919) 481-2500
Email: watsona@3tex.com
Research Institution
Thermal protection materials have been largely parasitic materials adhered to airframe structural materials beneath. Attachment of such disparate and largely non-load-bearing materials incurs weight penalties and encourages failures. Integrated preforms providing enhanced thermal management, improved shock resistance/integrity and thereby enable more efficient re-entry profiles. This project will pursue the formation of Carbon/SiC composites with integrally 3D Braided and 3D woven single ply 3D preforms having a combination of functionally gradient densities, hollow cores, and planned thermal management, using ceramic and non-ceramic fiber types. The preforms will provide continuous fiber connecting the ceramic outer and non-ceramic inner segments of the structure, while internal flutes of the core allow for insulation and/or cooling. With guidance from Northrop Grumman, composite test specimens relevant to known hypersonic TPS and hot structure problems will be designed and fabricated, exploiting the flexibility of the 3BraidTM and 3WeaveTM processes to produce multi-density, and complex shaped hybrid preforms. Partner Starfire Systems will perform ceramization with proven methods for the infiltration of such fiber preforms with gradient ceramic matrices. The preforms will eliminate spalling and de-bonding altogether due to both mitigation of thermal misfits, and by the inherently integral single ply nature of the 3D woven fiber architectures themselves.

* information listed above is at the time of submission.

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