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Title: Spontaneously intermixed Al-Mg barriers enable corrosion-resistant Mg/SiC multilayer coatings

Abstract

Magnesium/silicon carbide (Mg/SiC) has the potential to be the best-performing reflective multilayercoating in the 25–80 nm wavelength region but suffers from Mg-related corrosion, an insidious problem which completely degrades reflectance. We have elucidated the origins and mechanisms of corrosion propagation within Mg/SiC multilayers. Based on our findings, we have demonstrated an efficient and simple-to-implement corrosion barrier for Mg/SiC multilayers. In conclusion, the barrier consists of nanometer-scale Mg and Al layers that intermix spontaneously to form a partially amorphous Al-Mg layer and is shown to prevent atmospheric corrosion while maintaining the unique combination of favorable Mg/SiC reflective properties.

Authors:
 [1];  [2];  [1];  [1];  [1];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Consejo Superior de Investigaciones Cientificas, Madrid (Spain)
Publication Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1266666
Report Number(s):
LLNL-JRNL-561992
Journal ID: ISSN 0003-6951
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 101; Journal Issue: 4; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; magnesium; corrosion; multilayers; carbides; silicon

Citation Formats

Soufli, Regina, Fernandez-Perea, Monica, Baker, Sherry L., Robinson, Jeff C., Alameda, Jennifer, and Walton, Christopher C. Spontaneously intermixed Al-Mg barriers enable corrosion-resistant Mg/SiC multilayer coatings. United States: N. p., 2012. Web. doi:10.1063/1.4737649.
Soufli, Regina, Fernandez-Perea, Monica, Baker, Sherry L., Robinson, Jeff C., Alameda, Jennifer, & Walton, Christopher C. Spontaneously intermixed Al-Mg barriers enable corrosion-resistant Mg/SiC multilayer coatings. United States. https://doi.org/10.1063/1.4737649
Soufli, Regina, Fernandez-Perea, Monica, Baker, Sherry L., Robinson, Jeff C., Alameda, Jennifer, and Walton, Christopher C. Tue . "Spontaneously intermixed Al-Mg barriers enable corrosion-resistant Mg/SiC multilayer coatings". United States. https://doi.org/10.1063/1.4737649. https://www.osti.gov/servlets/purl/1266666.
@article{osti_1266666,
title = {Spontaneously intermixed Al-Mg barriers enable corrosion-resistant Mg/SiC multilayer coatings},
author = {Soufli, Regina and Fernandez-Perea, Monica and Baker, Sherry L. and Robinson, Jeff C. and Alameda, Jennifer and Walton, Christopher C.},
abstractNote = {Magnesium/silicon carbide (Mg/SiC) has the potential to be the best-performing reflective multilayercoating in the 25–80 nm wavelength region but suffers from Mg-related corrosion, an insidious problem which completely degrades reflectance. We have elucidated the origins and mechanisms of corrosion propagation within Mg/SiC multilayers. Based on our findings, we have demonstrated an efficient and simple-to-implement corrosion barrier for Mg/SiC multilayers. In conclusion, the barrier consists of nanometer-scale Mg and Al layers that intermix spontaneously to form a partially amorphous Al-Mg layer and is shown to prevent atmospheric corrosion while maintaining the unique combination of favorable Mg/SiC reflective properties.},
doi = {10.1063/1.4737649},
journal = {Applied Physics Letters},
number = 4,
volume = 101,
place = {United States},
year = {Tue Jul 24 00:00:00 EDT 2012},
month = {Tue Jul 24 00:00:00 EDT 2012}
}

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