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OXIDATION PROTECTION OF HIGH TEMPERATURE CARBON-CARBON COMPOSITES

Award Information

Agency:
Department of Defense
Branch:
Air Force
Award ID:
9451
Program Year/Program:
1989 / SBIR
Agency Tracking Number:
9451
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Applied Sciences, Inc.
141 W. Xenia Ave. PO Box 579 Cedarville, OH 45314-
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1989
Title: OXIDATION PROTECTION OF HIGH TEMPERATURE CARBON-CARBON COMPOSITES
Agency / Branch: DOD / USAF
Contract: N/A
Award Amount: $66,791.00
 

Abstract:

CURRENT APPLICATIONS FOR RE-ENTRY VEHICLES AND HIGH TEMPERATURE AIR BREATHING PROPULSION SYSTEMS, AND DESIGNS FOR ADVANCED AIRCRAFT AND SPACECRAFT SUCH AS THE NATIONAL AEROSPACE PLANE HAVE SIMULATED INTEREST IN A CLASS OF MATERIALS WHICH CAN OPERATE IN AN OXYGEN ATMOSPHERE AT TEMPERATURES RANGING BETWEEN 500 C AND 2200 C. CARBONCARBON COMPOSITES ARE ATTRACTIVE FOR THIS TEMPERATURE RANGE FROM THE DUE TO COMPATIBILITY BETWEEN REINFORCEMENT AND MATRIX, MATERIAL DENSITY, MELTING TEMPERATURE, MECHANICAL PROPERTIES, RESISTANCE TO THERMAL SHOCK, COST, AND AVAILABILITY. THE ONE MAJOR DEFECT IS OXIDATION OF CARBON, LEADING TO EROSION OF THE STRUCTURE, AND RAPID LOSS OF STRENGTH. THE PROPOSED EFFORT WOULD DEVELOP A CARBON-CARBON COMPOSITE WHICH UTILIZES A HIGHLY EXIDATION-RESISTANT DOPED CARBON FIBER WHICH IS SUBSEQUENTLY COATED WITH A THIN SIC LAYER, AND INCORPORATED INTO A CARBON-CARBON COMPOSITE, THE MATRIX OF WHICH IS SIMILARLY TREATED WITH ADDITION OF BORON, AND FINALLY EXTERNALLY COATED WITH A SIC LAYER. THIS APPROACH OFFERS THE POTENTIAL FOR A HIGH STRENGTH, STABLE COMPOSITE FOR TEMPERATURES UP TO AT LEAST 1750 C.

Principal Investigator:

Max L Lake
5137671477

Business Contact:

Small Business Information at Submission:

Applied Sciences Inc
Po Box 186 - 800 Livermore St Yellow Springs, OH 45387

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No