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Please use this identifier to cite or link to this item: http://hdl.handle.net/1860/1156

Title: Testing multiwall carbon nanotubes on ion erosion for advanced space propulsion
Authors: Yap, Yoke Khin
Menda, Jitendra
Vanga, Lakshman Kumar
Kayastha, Vijaya
Wang, Jiesheng
King, Lyon B.
Dimovski, Svetlana
Gogotsi, Yury G.
Issue Date: 2004
Publisher: Materials Research Society
Citation: Materials Research Society symposia proceedings v. 821: pp. P3.7.1-P3.7.5
Abstract: Are carbon nanotubes more resistant than diamonds against ion erosion? Here, we report an evaluation of multiwall carbon nanotubes (MWNTs) as the protective coating against plasma erosion in advanced space propulsion systems. We have compared polycrystalline diamond films with MWNTs, amorphous carbon (a-C) and boron nitride (BN) films. Two types of MWNTs were investigated including vertically aligned (VA) MWNTs, and those horizontally laid on the substrate surfaces. Only diamond films and VA-MWNTs survived erosion by 250 eV krypton ions of a flight-quality Hall-effect thruster. VA-MWNTs are found to bundle at their tips after ion erosion.
URI: http://hdl.handle.net/1860/1156
Appears in Collections:Faculty Research and Publications (MSE)

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