LONG-TERM OXIDATION PROTECTION OF CARBON-CARBON FLIGHT STRUCTURES

Award Information
Agency:
Department of Defense
Branch
Defense Advanced Research Projects Agency
Amount:
$246,124.00
Award Year:
1989
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
6465
Agency Tracking Number:
6465
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Po Box 1354 - 1055 Wall St/ste, La Jolla, CA, 92038
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Robert M Washburn
(619) 454-1133
Business Contact:
() -
Research Institute:
n/a
Abstract
HIGH-STRENGTH CARBON-CARBON COMPOSITES ARE CANDIDATE STRUCTURAL MATERIALS FOR THE NATIONAL AERO-SPACE PLAN (NASP) IF LONG-TERM OXIDATION PROTECTION CAN BE DEVELOPED. THE SPARTA CONCEPT FOR OXIDATION PROTECTION COATINGS FOR LONG-TERM USE IN AN ULTRAHIGH TEMPERATURE FLIGHT ENVIRONMENT INVOLVES A GRADED PROPERTY, MULTILAYER COATING (GPMC). THE GPMC PERFORMS SEVERAL FUNCTIONS AND OVERCOMES THE VARIOUSFAILURE MECHANISMS WHICH HAVE BEEN OBSERVED PREVIOUSLY: (1) CARBON DIFFUSION IS CONTROLLED RESULTING IN THE STABILIZATION OF THE INTERFACE BETWEEN THE COATING AND THE CARBON-CARBON COMPOSITE, (2) OXYGEN DIFFUSION IS CONTROLLED BY THE USE OF A NEW BARRIER CONCEPT WITHIN THE MULTILAYER COATING, AND (3) COEFFICIENT OF EXPANSION MISMATCH PROBLEMS ARE OVERCOME BY GRADING THE COMPOSITION (AND THEREFORE, THE PROPERTIES) WITHIN THE VARIOUS LAYERS OF THE COATING. NEW SOL-GEL PROCESSING TECHNOLOGY BEING DEVELOPED AT SPARTA WILL BE USED TO FABRICATE COATED CARBON-CARBON COMPOSITE SPECIMENS. THIS PROGRAM IS DESIGNED TO ANALYTICALLY AND EXPERIMENTALLY DETERMINE THE FEASIBILITY OF DEVELOPING OXIDATION PROTECTION COATINGS FOR LONG-TERM USE IN ULTRAHIGH TEMPERATURE FLIGHT ENVIRONMENTS.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government