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Vertically Aligned Carbon Nanotubes as the Sputter Resist in Space Propulsive Systems

Published online by Cambridge University Press:  01 February 2011

Yoke Khin Yap ,
Vijaya Kayastha ,
Jitendra Menda ,
Lakshman Kumar Vanga ,
Jiesheng Wang ,
Alex Kieckhafer ,
Dean Massey  and
Lyon B. King
Yoke Khin Yap
Affiliation:
Department of Physics, Michigan Technological University, Houghton, MI 49931, USA.
Vijaya Kayastha
Affiliation:
Department of Physics, Michigan Technological University, Houghton, MI 49931, USA.
Jitendra Menda
Affiliation:
Department of Physics, Michigan Technological University, Houghton, MI 49931, USA.
Lakshman Kumar Vanga
Affiliation:
Department of Physics, Michigan Technological University, Houghton, MI 49931, USA.
Jiesheng Wang
Affiliation:
Department of Physics, Michigan Technological University, Houghton, MI 49931, USA.
Alex Kieckhafer
Affiliation:
Department of Mechanical Engineering-Engineering Mechanics, Michigan Technological University, Houghton, MI 49931, USA.
Dean Massey
Affiliation:
Department of Mechanical Engineering-Engineering Mechanics, Michigan Technological University, Houghton, MI 49931, USA.
Lyon B. King
Affiliation:
Department of Mechanical Engineering-Engineering Mechanics, Michigan Technological University, Houghton, MI 49931, USA.
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Abstract

Two-types of vertically aligned multi-walled carbon nanotubes (VA-MWNTs) are evaluated as the protective coatings against ion erosion in electric propulsion systems. A series of experiments have been conducted to understand the erosion rate and erosion mechanism of these VA-MWNTs. These experiments were carried out with Xe propellant at an ion current density of 5 mA/cm2. We found that the erosion rates of both types of VA-MWNTs were changing with time. Such a nonlinear erosion process is explained according to a possible erosion mechanism.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 851: Symposium NN – Materials for Space Applications , 2004 , NN2.2
Copyright
Copyright © Materials Research Society 2005

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References

REFERENCES

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