ISSN:
0142-2421
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Physics
Notes:
Anomalous compound surface layer growth is observed during plasma nitriding of ferrous materials under certain operating conditions. The formation of an iron oxy-nitride layer by the redeposition of sputtered cathode material was found to influence the growth kinetics of the γ'-Fe4N layer which forms during plasma nitriding of α-Fe to the extent where the γ'-Fe4N surface layer initially increases and subsequently decreases in thickness after deposition of the iron oxy-nitride layer. The nature of these layers was studied by XPS and reflection EELS to elucidate the electron structure of the valence bands of these compunds. Results are Results are presented which explain the thermodynamic stability of the iron oxy-nitride layer and the apparent de-nitriding effect that this layer formation has on the underlying γ'-Fe4N layer.
Additional Material:
8 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/sia.740120307
Permalink
