Document Type
Presentation
Journal/Book Title/Conference
Proceedings of the Applied Space Environments Conference 2019
Location
Los Angeles, CA
Publication Date
5-13-2019
First Page
1
Last Page
3
Abstract
Carbon nanotube (CNT) forest coatings have been found to lower electron yield from material surfaces. The suppressed yields have been attributed to both the lower inherent yields of low-atomic number carbon and the enhanced electron recapture resulting from the morphology of the carbon layer. To explore the relative contributions of these two causes of yield suppression, tests have been made on CNT forest-coated conducting substrate samples subjected to vibrationally-induced changes of the coating structure. The extent of vibrationally-induced structural changes—due, for example, to shear-force conditions during space-vehicle transit—are of interest, as CNT have been a frequent topic of scientific curiosity and space applications due to their high tensile strength, high aspect ratio geometry, and unique electromagnetic characteristics. Their use has also been beneficial for sensor equipment, both terrestrial and space-faring, due to their extremely low photon and electron reflectivity.
Recommended Citation
Jordan Lee, Brian Wood, Gregory Wilson, T.C. Shen and JR Dennison, “Influence of Vibrationally-Induced Structural Changes on Carbon Nanotube Forests Suppression of Electron Yield,” Proceedings of the Applied Space Environments Conference 2019, (Los Angeles, CA, May 12-17, 2019).