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Silicon Carbide-Silicon Carbide Composites

Award Information

Agency:
Department of Defense
Branch:
Missile Defense Agency
Award ID:
18129
Program Year/Program:
1992 / SBIR
Agency Tracking Number:
18129
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
PHASEX CORP.
360 Merrimack Street Lawrence, MA 01843
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1992
Title: Silicon Carbide-Silicon Carbide Composites
Agency / Branch: DOD / MDA
Contract: N/A
Award Amount: $70,948.00
 

Abstract:

Ceramic composites of silicon carbide fibers in a silicon carbide matrix are currently produced via CVD infiltration (CVI), but the requisite high temperature for CVI can partially degrade the fibers. Infiltrating a SiC precursor polymer into a fiber preform and subsequently converting the polymer at low temperature (<900 C) to SiC can form a composite with improved mechanical properties. A supercritical fluid (SCF) solvent exhibiting high transport properties and no surface tension limitation is used to infiltrate and deposit the polymer uniformly in a SiC fiber preform or tape; the precursor is pyrolyzed to monolithic SiC with no adverse interaction on the fiber surface, thereby achieving full advantage of the SiC fibers in the composite. Improved mechanical properties will be measured and compared with conventionally produced silicon carbide composites. The program is another example of the application of the company's technology to achieving improved performance of materials such as carbon/carbon composites, high performance polymers, space lubricants, and energetic materials.

Principal Investigator:

Michael P. Coffey
5087948686

Business Contact:

Small Business Information at Submission:

Phasex Corp.
287 Emerson Rd. Lexington, MA 02173

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