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dc.creatorHess, David M.
dc.creatorSelman, Corey
dc.creatorWinter, Raymond
dc.creatorGoswami, Kisholoy
dc.date.accessioned2014-10-22T15:49:15Z
dc.date.available2014-10-22T15:49:15Z
dc.date.issued2014-07-13
dc.identifier.isbn978-0-692-38220-2
dc.identifier.otherICES-2014-079
dc.identifier.urihttp://hdl.handle.net/2346/59730
dc.descriptionTucson, Arizona
dc.descriptionDavid M. Hess, PhD, InnoSense LLC., USA
dc.descriptionCorey Selman, InnoSense LLC., USA
dc.descriptionRaymond Winter, InnoSense LLC., USA
dc.descriptionKisholoy Goswami, PhD, InnoSense LLC., USA
dc.descriptionThe 44th International Conference on Environmental Systems was held in Tuscon, Arizona, USA on 13 July 2014 through 17 July 2014.
dc.description.abstractInnoSense LLC (ISL) has developed modified ionic liquid-based low temperature lubricants for use in NASA robotic systems. Ionic liquids are known to exhibit a much lower coefficient of friction in comparison to traditional lubricants, operate within a wide temperature range and exhibit low volatility. As a result, lubricants based on ionic liquids reduce the risk of damage to critical space-based hardware. In this paper, we present our latest work developing a method for using pyridinium salts to control thermal stability though phase modulation and to improve lubricity. This phase modulation results in lower melting points and possibly improved metallic surface interactions. Our results for this method have suggested that the modified ionic liquid lubricant exhibits a highly ordered structure that forms a boundary layer at the metallic surface through electrostatic interactions. This microscopic alignment provides for excellent lubricity through the repulsive and attractive interactions between molecules. The ionic liquid lubricant system, thus exhibits a higher degree of general performance than traditional liquid lubricants. We have tested the physical phase properties of the lubricant in temperatures ranging from –90 °C to 300 °C. Our lubricant does not corrode metallic substrates, phase separate, or degrade. In preliminary side-by-side ball bearing performance testing conducted at the ISL facility, our modified ionic liquid lubricants outperformed stock lubricants (preloaded bearing hydrocarbon-based lubricant). Our system exhibited lower driving currents with little sign of wear. Ongoing work is being performed to demonstrate the low temperature limit of the lubricant in field appropriate conditions.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoengen_US
dc.publisher44th International Conference on Environmental Systemsen_US
dc.titleModified Ionic Liquid-Based High-Performance Lubricants for Robotic Operationsen_US
dc.typePresentationen_US


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