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Functional Geopolymer Composites for Structural Ceramic Applications

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9550-04-C-0038
Agency Tracking Number: F023-0029
Amount: $496,114.00
Phase: Phase II
Program: STTR
Solicitation Topic Code: AF02T010
Solicitation Number: N/A
Solicitation Year: 2002
Award Year: 2004
Award Start Date (Proposal Award Date): 2004-04-05
Award End Date (Contract End Date): 2006-04-05
Small Business Information
2425 South 900 West
Salt Lake City, UT 84119
United States
DUNS: 089500540
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: Yes
Principal Investigator
 Balakrishnan Nair
 Technical Program Manager
 (801) 956-1000
Business Contact
 Raymond Miller
Title: Chief Financial Officer
Phone: (801) 978-2114
Research Institution
 Brown University
 Regina White
Office of Research, 92 Thayer St.
Providence, RI 02912
United States

 (401) 863-9622
 Nonprofit College or University

The overall objective of the Phase II program is to develop a database of geopolymer-derived functional materials systems for ceramic matrix composities, including candidate materials for matrices and fiber-matrix interphase layers, which provide appropriate materials properties for performance in high temperature hydrothermal operating conditions at acceptable composite processing costs. Both the matrix and interphase design will be done using a systematic approach where desirable phases that can be derived through geopolymer processing routes are identified through study of sintered ceramics with these compositions and desirable properties of the matrix/interphase are estimated through analysis using existing micromechanical models for brittle matrix-brittle fiber systems, after which geopolymer routes for attaining these compositions and properties will be developed and optimized. Ceramic composites will be fabricated using the new compositions both by matrix infiltration routes and filament wounding routes and the mechanical properties and hydrothermal properties of these composites will be evaluated. Microstructural and compositional changes occurring during processing and hydrothermal exposure will be characterized. A detailed database of geopolymer derived composite processing-microstructure-property correlations will thus be developed.

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

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