English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Hydrogen permeation barrier performance characterization of vapor deposited amorphous aluminum oxide films using coloration of tungsten oxide

MPS-Authors
/persons/resource/persons109646

Koch,  F.
Material Research (MF), Max Planck Institute for Plasma Physics, Max Planck Society;

Maier,  H.
Max Planck Society;

/persons/resource/persons108745

Bolt,  H.
Material Research (MF), Max Planck Institute for Plasma Physics, Max Planck Society;

External Resource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Yamada-Takamura, Y., Koch, F., Maier, H., & Bolt, H. (2002). Hydrogen permeation barrier performance characterization of vapor deposited amorphous aluminum oxide films using coloration of tungsten oxide. Surface & Coatings Technology, 153(2-3), 114-118.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0027-4132-3
Abstract
Low hydrogen diffusivity and solubility of aluminum oxide make a vapor deposited aluminum oxide (Al2O3) film an anticipated hydrogen permeation barrier coating. In this paper, amorphous Al2O3 film was deposited using filtered vacuum arc method. As a substrate, vapor deposited amorphous tungsten oxide (WOE) film was used in order to characterize hydrogen permeation barrier performance of the Al2O3 film utilizing coloration of WOE when it forms HxWO3. The samples were exposed to the flux and angular quantified atomic hydrogen beam, and the degree of coloration was characterized by visibly: to new infrared range transmission spectroscopy. Using this method, a half-micron thick amorphous Al2O3 film reducing atomic hydrogen reaching the underlying WO3 film to 3 X 10(-4) was measured. Furthermore, Al2O3 film as thin as 20 nm showed atomic hydrogen reduction of 4 X 10(-3). The results indicate effectiveness of thin vapor depasited Al2O3 film as a permeation barrier against atomic hydrogen. (C) 2002 Elsevier Science B.V All rights reserved.