1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The mechanical robustness of atomic-layer- and molecular-layer-deposited coatings on polymer substrates
Rent:
Rent this article for
USD
10.1063/1.3124642
/content/aip/journal/jap/105/9/10.1063/1.3124642
http://aip.metastore.ingenta.com/content/aip/journal/jap/105/9/10.1063/1.3124642

Figures

Image of FIG. 1.
FIG. 1.

Schematic showing the subreaction sequence resulting in the growth of ALD or MLD coatings. Films are grown in monolayer increments by alternating between two separate half reactions, i.e., “A” and “B” surface species.

Image of FIG. 2.
FIG. 2.

A chemical tag was used for the postexamination of tensile specimens. A lipophillic end group enables the tag to adhere specifically to the hydrophobic surface of the PEN substrate; a fluorescent end group enables damage visualization via external illumination.

Image of FIG. 3.
FIG. 3.

Tensile test data (engineering stress/strain) for a 5 nm thick layer deposited on a thick PEN substrate.

Image of FIG. 4.
FIG. 4.

Measured crack density for a single layer (deposited on a thick PEN substrate), following tensile testing to prescribed strains.

Image of FIG. 5.
FIG. 5.

Evolution of the damage morphology for a single 125 nm thick layer deposited on PEN. The set of images includes separate specimens tensioned to the of (a) 0%, (b) 0.9%, (c) 1.5%, (d) 7.5%, and (e) 25%.

Image of FIG. 6.
FIG. 6.

Measured crack density for a 100 nm thick alucone layer, tensioned to prescribed strains. The insets show (a) a schematic representing the specimens in cross section and (b) the morphology of the top surface (orientation is indicated with respect to ) of a specimen tensioned to .

Image of FIG. 7.
FIG. 7.

Cross section of multilayer coating on PEN (micrograph is oriented obliquely to the specimen).

Image of FIG. 8.
FIG. 8.

Measured crack density for separate ALD/MLD/ALD coatings (thickness ), tensioned to prescribed strains.

Image of FIG. 9.
FIG. 9.

Damage morphology for coatings tensioned to , including (a) 25 nm , as well as (b) 25/15/25 nm, (c) 25/192/25, and (d) 10/3/10 nm multilayers. Tearing, concluded to occur in the PEN substrate, is indicated with an arrow in (a), (b), and (d). The delamination of film layers is shown in (c). The direction of the strain applied during testing is shown in (d).

Image of FIG. 10.
FIG. 10.

Results of numerical analysis for an ALD/MLD/ALD coating on a PEN substrate. The critical strains measured from ALD/MLD/ALD specimens, Fig. 8, are also shown in the figure.

Image of FIG. 11.
FIG. 11.

Results of numerical analysis for an alumina/arbitrary polymer/alumina coating configuration on a PEN substrate. The results predict according to the modulus and critical energy release rate (“toughness”) of the spacer layer. The particular geometry considered is shown in inset.

Tables

Generic image for table
Table I.

Summary of results for a single layer (deposited on PEN), tensioned to prescribed strains.

Generic image for table
Table II.

Summary of results for a 100 nm thick alucone layer (deposited on PEN), tensioned to prescribed strains.

Generic image for table
Table III.

Summary of results for multilayer coatings, tensioned to prescribed strains.

Loading

Article metrics loading...

/content/aip/journal/jap/105/9/10.1063/1.3124642
2009-05-12
2014-04-17
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The mechanical robustness of atomic-layer- and molecular-layer-deposited coatings on polymer substrates
http://aip.metastore.ingenta.com/content/aip/journal/jap/105/9/10.1063/1.3124642
10.1063/1.3124642
SEARCH_EXPAND_ITEM