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Title: Effect of sealing on the morphology of anodized aluminum oxide

Abstract

Ultra-small angle X-ray scattering (USAXS), small-angle neutron scattering (SANS), X-ray reflectometry (XRR) and neutron reflectometry (NR) were used to probe structure evolution induced by sealing of anodized aluminum. While cold nickel acetate sealing and hot-water sealing decrease pore size, these methods do not alter the cylindrical porous framework of the anodic aluminum oxide layer. Hot nickel acetate both fills the pores and deposits on the air surface (air–oxide interface), leading to low porosity and small mean pore radius (39 Å). Finally, electrochemical impedance spectroscopy and direct current polarization show that samples sealed by hot nickel acetate outperform samples sealed by other sealing methods.

Authors:
 [1];  [1];  [1]; ORCiD logo [2];  [1]
  1. Univ. of Cincinnati, OH (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1836473
Alternate Identifier(s):
OSTI ID: 1248435
Grant/Contract Number:  
AC05-00OR22725; W7405-ENG-36; AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Corrosion Science
Additional Journal Information:
Journal Volume: 97; Journal ID: ISSN 0010-938X
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; aluminum; x-ray diffraction; EIS; reflectivity; anodic films; interfaces

Citation Formats

Hu, Naiping, Dong, Xuecheng, He, Xueying, Browning, James F., and Schaefer, Dale W. Effect of sealing on the morphology of anodized aluminum oxide. United States: N. p., 2015. Web. doi:10.1016/j.corsci.2015.03.021.
Hu, Naiping, Dong, Xuecheng, He, Xueying, Browning, James F., & Schaefer, Dale W. Effect of sealing on the morphology of anodized aluminum oxide. United States. https://doi.org/10.1016/j.corsci.2015.03.021
Hu, Naiping, Dong, Xuecheng, He, Xueying, Browning, James F., and Schaefer, Dale W. 2015. "Effect of sealing on the morphology of anodized aluminum oxide". United States. https://doi.org/10.1016/j.corsci.2015.03.021. https://www.osti.gov/servlets/purl/1836473.
@article{osti_1836473,
title = {Effect of sealing on the morphology of anodized aluminum oxide},
author = {Hu, Naiping and Dong, Xuecheng and He, Xueying and Browning, James F. and Schaefer, Dale W.},
abstractNote = {Ultra-small angle X-ray scattering (USAXS), small-angle neutron scattering (SANS), X-ray reflectometry (XRR) and neutron reflectometry (NR) were used to probe structure evolution induced by sealing of anodized aluminum. While cold nickel acetate sealing and hot-water sealing decrease pore size, these methods do not alter the cylindrical porous framework of the anodic aluminum oxide layer. Hot nickel acetate both fills the pores and deposits on the air surface (air–oxide interface), leading to low porosity and small mean pore radius (39 Å). Finally, electrochemical impedance spectroscopy and direct current polarization show that samples sealed by hot nickel acetate outperform samples sealed by other sealing methods.},
doi = {10.1016/j.corsci.2015.03.021},
url = {https://www.osti.gov/biblio/1836473}, journal = {Corrosion Science},
issn = {0010-938X},
number = ,
volume = 97,
place = {United States},
year = {Wed Jun 10 00:00:00 EDT 2015},
month = {Wed Jun 10 00:00:00 EDT 2015}
}

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Cited by: 68 works
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Works referenced in this record:

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Works referencing / citing this record:

Application of experimental design for AA6351 aluminum alloy anodization and coloring
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Effect of NaAlO 2 sealing on corrosion resistance of 2024 aluminum alloy anodized film
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Influence of Concentration and pH of Hexafluorozirconic Acid on Corrosion Resistance of Anodized AA7075-T6
journal, January 2019


The Effect of Electrolyte Temperature and Sealing Solution in Anodizing Operation on Hardness and wear Behavior of 7075 -t6 Aluminum Alloy
journal, February 2019


Nanoparticles deposition effects on 1050A aluminum alloy anodic layers
journal, January 2020


Corrosion and mechanical properties of plasma electrolytic oxidation‐coated AZ80 magnesium alloy
journal, May 2019


Determination of the dye penetration rate in porous aluminum oxide using Raman spectroscopy
journal, May 2019