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AN INNOVATIVE TECHNIQUE TO BOND ONE DIMENSIONAL CARBON-CARBON COMPOSITES TO…

Award Information

Agency:
Department of Energy
Branch:
N/A
Award ID:
27268
Program Year/Program:
1994 / SBIR
Agency Tracking Number:
27268
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1994
Title: AN INNOVATIVE TECHNIQUE TO BOND ONE DIMENSIONAL CARBON-CARBON COMPOSITES TO DISPERSION STRENGHTENED COPPER
Agency: DOE
Contract: N/A
Award Amount: $75,000.00
 

Abstract:

ONE DIMENSIONAL CARBON-CARBON (-C) COMPOSITES ARE CONSIDERED AS CANDIDATE TILE MATERIALS FOR DIVERTER APPLICATIONS DUE TO THEIR HIGH THERMAL CONDUCTIVITY. UNFORTUNATELY, SUCH COMPOSITES ALSO SUFFER FROM EXTREMELY POOR CROSS-FIBER TENSILE STRENGTH. THE PROBLEM OF BONDING DISPERSIVE STRENGTHENED COPPER (CU) TUBE, WITH AND WITHOUT SOFT OXYGEN-FREE HIGH CONDUCTIVITY (OFHC) CU INTERLAYERS, HAS BEEN ANALYZED BY RESEARCHERS ELSEWHERE WHO CONCLUDED THAT, ALTHOUGH OFHC CU LAYERS WERE BENEFICIAL IN REDUCING THE STRESSES, THE MAGNITUDE OF STRESSES INC THE C-C COMPOSITE WAS STILL HIGH ENOUGH TO CRACK THE C-C COMPOSITE. BY CONTRAST, AN INNOVATIVE SOLUTION IS SUGGESTED WHICH WILL ELIMINATE THE COEFFICIENT OF THERMAL EXPANSION (CTE) MISMATCH IN THE CROSS-FIBER DIRECTION AND SIMULTANEOUSLY REDUCE THE CTE MISMATCH ALONG THE LENGTH OF THE FIBER. THIS IS EXPECTED TO REDUCE THE STRESSES IN THE C-C COMPOSITE TO THE POINT THAT THEY ARE BELOW THE FAILURE STRENGTH OF THE COMPOSITE. AN ATTENDANT BENEFIT OF THIS APPROACH IS THAT THE THERMAL CONDUCTIVITY OF THE TUBE WILL ALSO BE INCREASED. THE FEASIBILITY OF THIS CONCEPT WILL BE INVESTIGATED IN PHASE I BY USING NUMERICAL ANALYSIS AND A UNIQUE COMPOSITE PROCESSING TECHNIQUE.

Principal Investigator:

Dr S Guha
6025741980

Business Contact:

Small Business Information at Submission:

Materials And Electrochemical
7960 S Kolb Rd Tucson, AZ 85706

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