Differential Sputtering Behavior of Pyrolytic Graphite and Carbon-Carbon Composite Under Xenon Bombardment | Zendy

John D. Williams | Zendy; M. Johnson | Zendy; Desiree Williams | Zendy

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Differential Sputtering Behavior of Pyrolytic Graphite and Carbon-Carbon Composite Under Xenon Bombardment

Author(s) -

John D. Williams,

M. Johnson,

Desiree Williams

Publication year - 2004

Publication title -

36th aiaa/asme/sae/asee joint propulsion conference and exhibit

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2004-3788

Subject(s) - pyrolytic carbon , xenon , carbon fibers , sputtering , graphite , materials science , composite number , composite material , highly oriented pyrolytic graphite , chemical engineering , nanotechnology , atomic physics , thin film , pyrolysis , physics , engineering

A differential sputter yield measurement technique is described, which consists of a quartz crystal monitor that is swept at constant radial distance from a small target region where a high current density xenon ion beam is aimed. This apparatus has been used to characterize the sputtering behavior of various forms of carbon including polycrystalline graphite, pyrolytic graphite, and PVD-infiltrated and pyrolized carbon-carbon composites. Sputter yield data are presented for pyrolytic graphite and carbon-carbon composite over a range of xenon ion energies from 200 eV to 1 keV and angles of incidence from 0 deg (normal incidence) to 60 deg .

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