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High Emissivity Channel Materials

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: 80NSSC23CA060
Agency Tracking Number: 221388
Amount: $899,999.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: Z10
Solicitation Number: SBIR_22_P2
Timeline
Solicitation Year: 2022
Award Year: 2023
Award Start Date (Proposal Award Date): 2023-05-19
Award End Date (Contract End Date): 2025-05-18
Small Business Information
7800 South Nogales Highway
Tucson, AZ 85756-9645
United States
DUNS: 066066874
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: Yes
Principal Investigator
 Zachary Wing
 (520) 547-0861
 zwing@acmtucson.com
Business Contact
 Mark Angier
Phone: (520) 547-0850
Email: mangier@acmtucson.com
Research Institution
N/A
Abstract

Electric propulsion for space is attractive for NASA, military, and commercial missions. NASA has identified manufacturing
issues that have resulted in significant costs to achieve performance repeatability and hardware reliability. nbsp;To date, these
materials have ongoing challenges with performance/hardware reliability related to thermal management. As Hall Effect
thruster power is scaled-up for missions with large payloads, thermal management poses a major design challenge for
temperature-sensitive areas of the thruster. State-of-the-art Hall-effect thrusters use borosil ceramics for the discharge
channel. nbsp; ACM has identified emissivity modifiers that can be added to conventional channel materials that will create a
High Emissivity Borosil (HEB). nbsp;This will increase the total channel emissivity. Compared to a coating, this method will offer
lifetime performance enhancement that will not spall, fail, or outgas due to cyclic power cycles.nbsp; Our Phase I results improved emissivity by 13%.nbsp; In Phase II, ACM will scale-up material processing, produce test channels, and conduct thruster testing.

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

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