NASA SBIR 2016 Solicitation


PROPOSAL NUMBER: 16-1 H2.03-7641
SUBTOPIC TITLE: High Power Electric Propulsion
PROPOSAL TITLE: Long Life Cathode Heaters for Hollow Cathodes

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
Sienna Technologies, Inc.
19501 144th Avenue North East, Suite F-500
Woodinville, WA 98072 - 4423
(425) 485-7272

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Ms. Ashley L Bissell
19501 144th Ave NE Suite F-500
Woodinville, WA 98072 - 4423
(425) 485-7272

CORPORATE/BUSINESS OFFICIAL (Name, E-mail, Mail Address, City/State/Zip, Phone)
Ms. Karen Valdastri
19501 144th Avenue North East, Suite F-500
Woodinville, WA 98072 - 4423
(425) 485-7272

Estimated Technology Readiness Level (TRL) at beginning and end of contract:
Begin: 1
End: 4

Technology Available (TAV) Subtopics
High Power Electric Propulsion is a Technology Available (TAV) subtopic that includes NASA Intellectual Property (IP). Do you plan to use the NASA IP under the award?

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
Present and future NASA missions, including the Asteroid Redirect Mission and efficient cargo delivery to mars, require a substantial increase in lifetime for ion engines and Hall thrusters. This has led to the development of long-life lanthanum hexaboride (LaB6) hollow cathode emitters, which operate at temperatures >1600⁰C. Current state-of-the-art co-axial swaged cathode heaters use magnesium oxide (MgO) insulators, which experience a significant drop in insulation resistance at temperatures of 1300⁰C, causing heater failure. Hollow cathode failure caused by the failure of an external cathode heater is the single most critical event that controls the thruster lifetime. While alumina (Al2O3) has recently been used as a replacement insulator material, it has questionable reliability due to grain growth and void formation at temperatures >1600⁰C.

In Phase I, we will formulate a new ceramic insulator using sound scientific principles, and develop a long-life cathode heater that can operate reliably at high power levels (>200 W) at high temperatures greater than 1600⁰C for use in long duration space propulsion missions. We will design, fabricate and test prototype swaged coaxial heaters to demonstrate the superior performance of the new insulators.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
Swaged coaxial heaters for hollow cathodes are used in ion propulsion systems including in flight Hall thrusters and in the Hall Effect Rocket with Magnetic Shielding (HERMeS) for the Asteroid Redirect Mission. Hollow cathodes have widespread use on spacecraft, on communication satellites, the electrodynamic tether, and space station structure and other space environments that include those of low-earth orbits, sun-synchronous high inclination orbits, and geosynchronous orbits.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The United States Air Force has many missions that would benefit from small, low-cost satellites. Commercial applications include communications and imaging satellites, companions to large satellites to provide surveillance and close-up inspection capabilities, such as to monitor and assure proper deployment of solar panels, antennae and other appendages.

TECHNOLOGY TAXONOMY MAPPING (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.)
Maneuvering/Stationkeeping/Attitude Control Devices

Form Generated on 04-26-16 15:14