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.
New technique for visualizing microboiling phenomena and its application to water pulse heated by a thin metal film
Rent:
Rent this article for
USD
10.1063/1.2206560
/content/aip/journal/rsi/77/6/10.1063/1.2206560
http://aip.metastore.ingenta.com/content/aip/journal/rsi/77/6/10.1063/1.2206560
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Schematic of microimaging system for recording bubble growth under pulse heating conditions.

Image of FIG. 2.
FIG. 2.

Schematic of trigger sequence for heating the thin film and pulsing the laser.

Image of FIG. 3.
FIG. 3.

Output voltage for a pulse at . Inflection point signifies bubble nucleation.

Image of FIG. 4.
FIG. 4.

Output voltage for a pulse at . Inflection point signifies bubble nucleation.

Image of FIG. 5.
FIG. 5.

Temporal profile of the light intensity (arbitrary units) from Surelite II laser. Each point in time is an average of 4000 laser pulses. The solid line is a least-squares Gaussian fit to the data.

Image of FIG. 6.
FIG. 6.

(Color online) Illustration of focal planes on bubble image. Photographs taken after initiation of a heating pulse: (a) focus on bubble periphery (substrate is blurred). Photographs are from two different heat pulses taken at the same delay time; (b) focus on substrate (bubble perimeter is blurred).

Image of FIG. 7.
FIG. 7.

Effective bubble diameter obtained from images where the substrate is in focus and the bubble periphery is in focus . Bubble images are after a pulse; Fig. 6 shows representative images of the two focal planes.

Image of FIG. 8.
FIG. 8.

(Color online) Evolution of bubble morphology in time increments of (effective framing rate of ); nucleation is triggered by an input voltage to the platinum film of over a time of .

Image of FIG. 9.
FIG. 9.

(Color online) Photographs showing more detail of the evolution of bubble morphology in the early period of nucleation and growth for , , and . Time beneath each image is relative to the first appearance of the bubbles. The bubbles are visible at the four corners of the platinum film at and coalesce to form a sheet that covers the surface by . At , the interior of the sheet is populated by clusters of microbubbles which eventually coalesce into a film at .

Image of FIG. 10.
FIG. 10.

(Color online) Images of different pulse heating events illustrating repeatability, taken after start of a pulse.

Loading

Article metrics loading...

/content/aip/journal/rsi/77/6/10.1063/1.2206560
2006-06-22
2014-04-23
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: New technique for visualizing microboiling phenomena and its application to water pulse heated by a thin metal film
http://aip.metastore.ingenta.com/content/aip/journal/rsi/77/6/10.1063/1.2206560
10.1063/1.2206560
SEARCH_EXPAND_ITEM