High Performance Plasma Channel Insulators for High Power Hall Thrusters

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$125,000.00
Award Year:
2013
Program:
SBIR
Phase:
Phase I
Contract:
NNX13CC63P
Award Id:
n/a
Agency Tracking Number:
124310
Solicitation Year:
2012
Solicitation Topic Code:
S3.03
Solicitation Number:
n/a
Small Business Information
19501 144TH AVE NE, SUITE F-500, Woodinville, WA, 98072-4423
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
015577190
Principal Investigator:
EnderSavrun
President
(425) 485-7272
ender.savrun@siennatech.com
Business Contact:
KarenValdastri
Business Official
(425) 485-7272
karen.valdastri@siennatech.com
Research Institute:
Stub




Abstract
NASA missions for planetary exploration require high power, long-life Hall thrusters. However, thruster power and lifetime are limited by the erosion of plasma channel walls. Current plasma channel insulator materials, such as BN or Borosil, have the required low secondary electron emission (SEE) but are susceptible to xenon plasma erosion. New plasma channel insulator materials with low SEE yield and high xenon plasma erosion resistance are needed to increase the efficiency and the lifetime of Hall thrusters. AlN has an exceptionally high plasma erosion resistance but suffers from a high SEE yield. AlN can be a "revolutionary" replacement for BN channel insulator since it provides high plasma erosion resistance with structural robustness and high thermal conductivity if it's SEE yield can be reduced.This SBIR Phase I program will develop a revolutionary AlN plasma channel insulator with lower SEE yield and higher erosion resistance than BN and BN-SiO2 for high power, long-life Hall thrusters. In Phase I we will (i) reduce the SEE yield of AlN by microstructural engineering, and (ii) fabricate fully functional plasma channel insulators for thruster testing at NASA-GRC to determine if the reduction of SEE yield of AlN channel insulator leads to better thruster performance than BN channels.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government