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Regolith Dust and Radiation-Tolerant Bearing

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: 80NSSC22PB095
Agency Tracking Number: 221981
Amount: $149,444.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: Z13
Solicitation Number: SBIR_22_P1
Solicitation Year: 2022
Award Year: 2022
Award Start Date (Proposal Award Date): 2022-07-21
Award End Date (Contract End Date): 2023-01-25
Small Business Information
631 Barbrow Lane
Knoxville, TN 37932-3249
United States
DUNS: 964860451
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Drew Spradling
 (865) 966-2170
Business Contact
 Drew Spradling
Phone: (865) 966-2170
Research Institution

A radiation-resistant and superhard material for dust-resistant mechanical bearing applications on the lunar surface will be tested and demonstrated under this project.nbsp; This highly incompressible ceramic material is able to be formed into intricate bearing geometries directly from powder by utilizing spark plasma sintering to create dense, hard, geometrically precise, and wear-resistant bearing surfaces.nbsp; This new material is more than 30% lighter than the chrome steel commonly used for bearings, and about 15% lighter than Nitinol, which NASA has been recently investigating for bearing applications.nbsp; A roller bearing using this new material that is tolerant of regolith dust will be designed and partially fabricated and tested.nbsp; Specimen coupons of the material will be characterized for tribology properties, coefficients of thermal expansion and friction, and wear resistance during temperature extremes from -240 C to 130 deg;C.nbsp; At the conclusion of the Phase II, a functioning roller bearing would have been tested in the simulated conditions and delivered to NASA for further evaluation.nbsp;nbsp;nbsp;nbsp;nbsp;

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

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