Modification of boron nitride ceramic to replicate hall effect thruster surface wear

Alexander J. Satonik, Joshua L. Rovey

Research output: Contribution to conferencePaperpeer-review

Abstract

Pristine and worn Hall-effect thruster boron nitride channel materials show significant differences in surface features, and chemical compositions. Worn thruster channels are typically created by running test thrusters in vacuum chambers for hundreds of hours. This paper studies ways to manually modified pristine samples of boron nitride without the use of a Hall-effect thruster. Sandpaper and abrasive blaster tests were used to modify surface roughness values of sample from 10,000 Å to 150,000 Å. These values match the range of surface roughness seen in worn Hall-effect thrusters. Vacuum heat treatments were preformed on samples, these treatments showed the ability to modify chemical compositions of boron nitride samples, but not in a manner matching changes seen in worn thruster channels.

Original languageEnglish (US)
DOIs
StatePublished - Dec 1 2012
Externally publishedYes
Event50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition - Nashville, TN, United States
Duration: Jan 9 2012Jan 12 2012

Other

Other50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
CountryUnited States
CityNashville, TN
Period1/9/121/12/12

ASJC Scopus subject areas

  • Aerospace Engineering

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