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High Performance Plasma Channel Insulators for High Power Hall Thrusters

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX14CC05C
Agency Tracking Number: 124310
Amount: $750,000.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: S3.03
Solicitation Number: N/A
Timeline
Solicitation Year: 2012
Award Year: 2014
Award Start Date (Proposal Award Date): 2014-04-22
Award End Date (Contract End Date): 2016-04-21
Small Business Information
19501 144th Avenue North East, Suite F-500
Woodinville, WA 98072-4423
United States
DUNS: 015577190
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Ender Savrun
 President
 (425) 485-7272
 ender.savrun@siennatech.com
Business Contact
 Karen Valdastri
Title: Business Official
Phone: (425) 485-7272
Email: karen.valdastri@siennatech.com
Research Institution
 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 insulators, BN or Borosil, have the required low secondary electron emission (SEE) but are susceptible to xenon plasma erosion. AlN has exceptionally high plasma erosion resistance but suffers from 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.

In Phase I program we demonstrated the SEE yield of AlN can be reduced to the levels of state-of-the-art BN-based materials by microstructural engineering without sacrificing its thermal and mechanical properties for long-life plasma channel insulators in high power Hall thrusters.

* Information listed above is at the time of submission. *

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