High Emissivity Surface Treatments for Arcjet Thrusters

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$74,987.00
Award Year:
1993
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
20050
Agency Tracking Number:
20050
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
780 Eden Road, Lancaster, PA, 17601
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
William G. Anderson
(717) 569-6551
Business Contact:
() -
Research Institution:
n/a
Abstract
Most surface emissivity coatings exhibit adherence problems under there severe operating conditions of an arcjet. A porous surface produced from powdered tungsten would more than double the effective emissivity, and would maintain full metallurgical integrity with the tungsten anode. Certain coatings, specifically hafnium carbide, appear promising and will be investigated. Combining hafnium carbide with porous tungsten could produce an effective emissivity in excess of 0.98.

* information listed above is at the time of submission.

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