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SURFACE STRENGHTHENING OF ADVANCED CERAMICS BY A THIN COMPOSITE SKIN

Award Information

Agency:
Department of Defense
Branch:
Defense Advanced Research Projects Agency
Award ID:
18356
Program Year/Program:
1994 / SBIR
Agency Tracking Number:
18356
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Technology Assessment & Transfer, Inc.
133 Defense Highway, Suite 212 Annapolis, MD 21401-
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Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1994
Title: SURFACE STRENGHTHENING OF ADVANCED CERAMICS BY A THIN COMPOSITE SKIN
Agency / Branch: DOD / DARPA
Contract: N/A
Award Amount: $497,538.00
 

Abstract:

THE OBJECTIVE OF THIS PHASE I SBIR PROJECT IS TO DEMONSTRATE THAT A MONOLITHIC CERAMIC CORE-COMPOSITE SKIN STRUCTURE HAS SIGNIFICANTLY INCREASED FRACTURE TOUGHNESS AS COMPARED TO THE CORE MATERIAL, WHILE SUBSTANTIALLY MAINTAINING ITS FLEXURAL STRENGTH. THE CORE MATERIAL IS REACTION BONDED SILICON NITRIDE, A FORMABLE AND RELATIVELY INEXPENSIVE STRUCTURAL CERAMIC. THE COMPOSITE SKIN IS A CHEMICAL VAPOR INFILTRATION PROCESSED SIC MATRIX WITH SIC, SI3N4, OR ALUMINOSILICATE FIBER REINFORCEMENT. A FURTHER OBJECTIVE IS THE DEVELOPMENT OF A LOW COST MICROWAVE-BASED FABRICATION PROCESS, FOR WHICH PHASE I FEASIBILITY WILL BE DEMONSTRATED VIA MICROWAVE IN SITU NITRIDING OF THE GREEN RBSN CORE. ANTICIPATED BENEFITS: THIS CORE-SKIN STRUCTURE APPROACH IS EXPECTED TO PROVIDE COMPOSITE BEHAVIOR WITHOUT THE EXPENSE OF FABRICATING THICK SECTION COMPOSITES. IF SUCCESSFUL, THIS WOULD MAKE THE CERAMIC CORE-COMPOSITE SKIN STRUCTURES COST-EFFECTIVE FOR SUCH COMPONENTS AS COMBUSTOR LINERS, HOT SECTION COMPONENTS AND NOZZLES IN AEROSPACE AND COMMERCIAL TURBINE ENGINES.

Principal Investigator:

Edward Paquette
3012618373

Business Contact:

Small Business Information at Submission:

Technology Assessment &
133 Defense Hwy., #212 Annapolis, MD 21401

EIN/Tax ID: 521253097
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No