NASA SBIR 2005 Solicitation

FORM B - PROPOSAL SUMMARY


PROPOSAL NUMBER:05 S5.01-7823
SUBTOPIC TITLE:Low Thrust and Propellantless Propulsion Technologies
PROPOSAL TITLE:Arc Suppression Coatings

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
ELECTRODYNAMICS APPPLICATIONS, INC.
P.O. Box 131460
Ann Arbor ,MI 48113 - 1460
(734) 786 - 1434

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
David   Morris
morris@edapplications.com
P.O. Box 131460
Ann Arbor, MI  48113 -1460
(734) 786 - 1434

TECHNICAL ABSTRACT (LIMIT 200 WORDS)
In order to support systems such as the Momentum Exchange/Electrodynamic Reboost (MXER) Tether, NASA has identified the need for advanced electrodynamic-tether materials. A recently identified concern with present tether materials, particularly illustrated by the arcing after the tether break during the TSS-1R mission, is the need for arc suppression in the event that the insulation is breached by orbital debris and/or micrometeoroids. This concern applies to any high voltage application, including solar arrays, electric thruster components, and various scientific instruments. A significant hazard in and of itself to the tether application, the impact of the debris may release ionized and neutral particles which can instigate electrical arcing to the surrounding plasma, further weakening or severing the tether. The research program proposed here will identify, develop, and test advanced coatings for electrodynamic tethers that will suppress arc generation should the coating be breached. The proposed mechanism for suppressing the arc is including in the coating an encapsulated or entrapped electronegative gas that is released during the insulation breach and arcing event.

POTENTIAL NASA COMMERCIAL APPLICATIONS (LIMIT 150 WORDS)
The arc suppression encapsulant coating is directly applicable to all electrodynamic tethers such as MXER, etc. It also may be applied to mitigate arcing concerns resulting from meteorite impact, or other arc initiation mechanisms, anywhere on a spacecraft where there is a high voltage present and the arc mechanism is randomly distributed over a large area with low probability of frequent repeat arcing mechanisms in the same location, such as solar panels.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (LIMIT 150 WORDS)
A successfully developed arc suppression coating would be applicable to terrestrial high voltage insulation applications where the potential for an arc is a concern. This will be true regardless of whether the application is in a vacuum or in a standard atmosphere.

NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.

TECHNOLOGY TAXONOMY MAPPING
Photovoltaic Conversion
Tethers


Form Printed on 09-19-05 13:12