COATED GRAPHITE FIBERS FOR HIGHLY CONDUCTIVE COMPOSITES

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$489,981.00
Award Year:
1992
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
16902
Agency Tracking Number:
16902
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
410 Chipeta Way #222, Salt Lake City, UT, 84108
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
COPPER-GRAPHITE COMPOSITES OFFER A UNIQUE COMBINATION OF HIGH THERMAL CONDUCTIVITY AND HIGH-TEMPERATURE STRENGTH AND MODULUS. THEY ARE PARTICULARLY USEFUL FOR THERMAL MANAGEMENT IN SPACE POWER GENERATION. HOWEVER, BECAUSE MOLTEN COPPER DOES NOT WET GRAPHITE, HOT PRESSED COPPER/GRAPHITE COMPOSITES ARE NOT THERMALLY STABLE, DEVELOPING PORES AND SWELLING WHEN EXPOSED TO HIGH-TEMPERATURE ENVIRONMENTS. THE PURPOSE OF THIS PROJECT IS TO DEVELOP A RELIABLE AND REPRODUCIBLE COATING PROCESS FOR GRAPHITE FIBERS THAT WOULD ALLOW THE FIBERS TO BE WET BYMOLTEN COPPER. THIS NOT ONLY WILL IMPROVE THE THERMAL STABILITY OF THE COMPOSITE BUT ALSO MAKE IT EASIER TO PRODUCE COMPLEX FORMS AND STRUCTURES BY MEANS OF THE AIR-STABLE COATING. THE COATING IS COMPATIBLE WITH OTHER METALS, SUCH AS ALUMINUM, ALLOWING USE OF THE SAME COATING TO PRODUCE ALUMINUM-GRAPHITE COMPOSITES. COPPER-GRAPHITE COMPOSITES OFFER A UNIQUE COMBINATION OF HIGH THERMAL CONDUCTIVITY AND HIGH-TEMPERATURE STRENGTH AND MODULUS. THEY ARE PARTICULARLY USEFUL FOR THERMAL MANAGEMENT IN SPACE POWER GENERATION. HOWEVER, BECAUSE MOLTEN COPPER DOES NOT WET GRAPHITE, HOT PRESSED COPPER/GRAPHITE COMPOSITES ARE NOT THERMALLY STABLE, DEVELOPING PORES AND SWELLING WHEN EXPOSED TO HIGH-TEMPERATURE ENVIRONMENTS. THE PURPOSE OF THIS PROJECT IS TO DEVELOP A RELIABLE AND REPRODUCIBLE COATING PROCESS FOR GRAPHITE FIBERS THAT WOULD ALLOW THE FIBERS TO BE WET BYMOLTEN COPPER. THIS NOT ONLY WILL IMPROVE THE THERMAL STABILITY OF THE COMPOSITE BUT ALSO MAKE IT EASIER TO PRODUCE COMPLEX FORMS AND STRUCTURES BY MEANS OF THE AIR-STABLE COATING. THE COATING IS COMPATIBLE WITH OTHER METALS, SUCH AS ALUMINUM, ALLOWING USE OF THE SAME COATING TO PRODUCE ALUMINUM-GRAPHITE COMPOSITES.

* information listed above is at the time of submission.

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