Effect of sealing on the morphology of anodized aluminum oxide
Journal Article
·
· Corrosion Science
- Univ. of Cincinnati, OH (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
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.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-06CH11357; AC05-00OR22725; W-7405-ENG-36
- OSTI ID:
- 1836473
- Alternate ID(s):
- OSTI ID: 22473257
OSTI ID: 1188830
OSTI ID: 1248435
- Journal Information:
- Corrosion Science, Journal Name: Corrosion Science Vol. 97; ISSN 0010-938X
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Interfacial morphology of low-voltage anodic aluminium oxide
Oxide structure of air-passivated U-6Nb alloy thin films
Effect of post annealing on microstructure and mechanical properties in Ni-free N-containing ODS steel
Journal Article
·
Mon Dec 31 23:00:00 EST 2012
· Journal of Applied Crystallography
·
OSTI ID:1093098
Oxide structure of air-passivated U-6Nb alloy thin films
Journal Article
·
Mon Jun 29 20:00:00 EDT 2020
· Journal of Nuclear Materials
·
OSTI ID:1638634
Effect of post annealing on microstructure and mechanical properties in Ni-free N-containing ODS steel
Journal Article
·
Mon Jul 01 00:00:00 EDT 2019
· Materials Characterization
·
OSTI ID:1548292