Research Papers in Physics and Astronomy

 

Date of this Version

May 1988

Comments

Published in the Journal of Vacuum Science and Technology A 6 (3), May/Jun 1988. Copyright © 1988 American Vacuum Society. Used by permission. For free online abstracts, see http://www.avs.org/literature.jvst.b.aspx

Abstract

In this communication we summarize our experiments related to the formation of chromium surface nitride layers on a Fe72Cr28{110} surface. These surface nitrides were produced by (i) exposure to molecular nitrogen, (ii) exposure to ammonia, and (iii) segregation of nitrogen to the crystal surface. It was found in all cases that the nitrogen concentration in the selvedge scales linearly with the chromium concentration and that chromium segregation is the rate determining step for the formation of a surface nitride.

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