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MoS2 Interactions with 1.5 eV Atomic Oxygen

Published online by Cambridge University Press:  28 February 2011

J.A. Martin ,
J.B. Cross  and
L.E. Pope
J.A. Martin
Affiliation:
Los Alamos National Laboratory, CLS-2,M.S. G738, Los Alamos, Nm 87545
J.B. Cross
Affiliation:
Los Alamos National Laboratory, CLS-2,M.S. G738, Los Alamos, Nm 87545
L.E. Pope
Affiliation:
Sandia National Laboratories, Division 1834, Albuquerque, NM 87185
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Abstract

Exposures of MoS2 to 1.5 eV atomic oxygen in an anhydrous environment reveal that the degree of oxidation is essentially independent of crystallite orientation and thesurface adsorbed reaction products are MoO3 and MoO2. A mixture ofoxides and sulfide exist over a depth of about 90 Å and this layer has a low diffusion rate for oxygen. It is concluded that a protective oxide layer will form on MoS2 upon exposure to the atomic-oxygen-rich environment of low earth orbit.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 140: Symposium S – New Materials Approaches to Tribology: Theory and Applications , 1988 , 271
Copyright
Copyright © Materials Research Society 1989

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