Oxidation behavior of AlN/CrN multilayered hard coatings

We report on the oxidation behavior of AlN/CrN multilayers at 900 °C, deposited by radio frequency magnetron sputtering. It is shown that oxidation in this system is controlled by diffusion of Cr towards the surface and formation of Cr(2)O(3). Cr diffusion is found to mainly occur along grain bounda...

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Detalles Bibliográficos
Autores principales: Tytko, Darius, Choi, Pyuck-Pa, Raabe, Dierk
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Singapore 2017
Materias:
Research
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5487816/
https://www.ncbi.nlm.nih.gov/pubmed/28680798
http://dx.doi.org/10.1186/s40580-017-0109-y
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author Tytko, Darius
Choi, Pyuck-Pa
Raabe, Dierk
author_facet Tytko, Darius
Choi, Pyuck-Pa
Raabe, Dierk
author_sort Tytko, Darius
collection PubMed
description We report on the oxidation behavior of AlN/CrN multilayers at 900 °C, deposited by radio frequency magnetron sputtering. It is shown that oxidation in this system is controlled by diffusion of Cr towards the surface and formation of Cr(2)O(3). Cr diffusion is found to mainly occur along grain boundaries. Thus, coherent cubic AlN/CrN multilayer regions with coarse columnar grain structures are found to be oxidation resistant, whereas regions decomposed into hexagonal AlN/cubic CrN are prone to oxidation.
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spelling pubmed-54878162017-07-03 Oxidation behavior of AlN/CrN multilayered hard coatings Tytko, Darius Choi, Pyuck-Pa Raabe, Dierk Nano Converg Research We report on the oxidation behavior of AlN/CrN multilayers at 900 °C, deposited by radio frequency magnetron sputtering. It is shown that oxidation in this system is controlled by diffusion of Cr towards the surface and formation of Cr(2)O(3). Cr diffusion is found to mainly occur along grain boundaries. Thus, coherent cubic AlN/CrN multilayer regions with coarse columnar grain structures are found to be oxidation resistant, whereas regions decomposed into hexagonal AlN/cubic CrN are prone to oxidation. Springer Singapore 2017-06-27 /pmc/articles/PMC5487816/ /pubmed/28680798 http://dx.doi.org/10.1186/s40580-017-0109-y Text en © Korea Nano Technology Research Society 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Research
Tytko, Darius
Choi, Pyuck-Pa
Raabe, Dierk
Oxidation behavior of AlN/CrN multilayered hard coatings
title Oxidation behavior of AlN/CrN multilayered hard coatings
title_full Oxidation behavior of AlN/CrN multilayered hard coatings
title_fullStr Oxidation behavior of AlN/CrN multilayered hard coatings
title_full_unstemmed Oxidation behavior of AlN/CrN multilayered hard coatings
title_short Oxidation behavior of AlN/CrN multilayered hard coatings
title_sort oxidation behavior of aln/crn multilayered hard coatings
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5487816/
https://www.ncbi.nlm.nih.gov/pubmed/28680798
http://dx.doi.org/10.1186/s40580-017-0109-y
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AT choipyuckpa oxidationbehaviorofalncrnmultilayeredhardcoatings
AT raabedierk oxidationbehaviorofalncrnmultilayeredhardcoatings

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