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Solid State MEMS Thrusters Using Electrically Controlled Extinguishable Solid Propellant Project

Summary

Type of release
a one-off release of a single dataset

Data Licence
Not Applicable

Content Licence
Creative Commons CCZero

Verification
automatically awarded

Release Date
9 April 2015
Modified Date
8 July 2015
Publishers
National Aeronautics and Space Administration
Keywords
completed, marshall-space-flight-center, project
Identifier
solid-state-mems-thrusters-using-electrically-controlled-extinguishable-solid-propellant-p
Landing Page
http://techport.nasa.gov/view/5229
Maintainers
Paul Mexcur hq-techport@mail.nasa.gov
Language
en-US

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Description

ET Materials, LLC developed the first ever electrically controlled extinguishable solid propellant (ECESP). The original propellant developed under Air Force SBIR contracts became know as ASPEN. The start/stop capabilities were first demonstrated in end burning configurations that operated by feeding the propellant against stationary electrodes. Continuing research by ET Materials led to a new family of ECESP propellants prepared as solution solid propellants. These propellants provided higher performance than the ASPEN, but are more electrically conductive. This feature was not as desirable as first thought because the electrode gap has to be much narrower to cause the propellant to ignite at the surface, which makes it more difficult to scale for larger motors. The high conductance of the propellant makes it ideal for a MEMS application as the propellant can be cast in thin layers. Since the propellant will only sustain combustion when electrical power is supplied stacked layers of the propellant could be ignited separately without causing ignition of neighboring layer. This provides more versatility than similar MEMS designs utilizing conventional solid propellants. In the Phase I study "micro cluster thrusters" will be fabricated and tested under vacuum conditions to establish the power and controller requirements.

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This dataset has been created by US Government which means it is required to be in the public domain. However US copyright law only allows open access by US citizens, we have assumed the data is equivalently licensed as CC0 for the rest of the world as this is in the spirit of the US Government’s Open Data policy.

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